I would be more likely to live in a city with more options of public transportation, like more frequent, trams and more skytrains. Some additional things that could be added are more frequent buses on busy routes, additional skytrain lines that service busier parts of the city, and electric trams that service smaller neighbourhoods. This could give people options to take public transit rather than driving to somewhat farther areas within their city and take another car off the road.

Did you know only 25% of 5-17 year olds in Canada use active modes of transportation. This is why it is really important to use transportation as much as you possibly can because only 1/4 kids do. Just think of how much gas gets put in the air in one day and how much you and the people around you can prevent that. You can't change everyones carbon footprint but you can change yours so use that opportunity and use it to your advantage to try and save our earth!

I agree with this as ,riding a bike or even walking to school your helping out the ecosystem by not using as much gas as you would be if you were driving. Even taking the bus is good and that's a good way for transportation as well. But imagine how much you can help out just by doing the smallest things can help make a good impact on our environment.

Hi this can help make a Sustainable

edit sing is single sorry

I agree because single use plastic will just turn into micro-plastic and stay in the air

I agree stop using single use plastic. It very much effects our environment as it is only "single use" using reusable water bottles such as Hydro Flask might cost more but wont cost more then thousands of single use plastic material. Don't use single plastics!

I agree with ethlou, Single use plastics are so bad and dangerous. When we are done with them we just chuck them in the garbage not thinking of the consequences. They can end up in the ocean and hurt our sea life or end up in a landfill and never break down. If Single use plastics end up in the ocean some of them could get caught around animals necks or fins and cause them to suffocate or die. Animals in the ocean could also confuse plastic as food which could make them very sick and/or cause animals to suffocate from the inside. If plastics do break down, they could turn into microplastics which are also very harmful in similar and different ways. Microplastics have been found to cause heart attacks, health affects and even death. Instead of using single use plastics we should use reusable water bottles, wooden cutlery, beeswax wrap instead or Saran Wrap (yes this more expensive, but you can reuse them multiple times so in the end you end up saving money.) And if you do end up using single use plastics try to recycle them properly so the can be reused in a different way.

i think nina is correct single use plastics are very bad for the environment and getting rid of them would genuinely not even be that difficult to do. All you have to do is be careful about what we buy a lot of things have single use plastic containers but as long as you take a moment to look wether or not you can recycle the plastic. This seems like one of the easier things to drop for most people and it is very important too. single use plastic is incredibly bad for the environment because it does not break down really at all and therefore they can kill many, many animals every year especially in the ocean which is already in bad shape because of ocean acidification.

use more public transport  and increase car sharing.

I agree, but I suggest walking or biking instead of driving because burning fossil fuels release a large amount of carbon dioxide (CO2). If you're going somewhere far, then that's when it is suggested taking public transportation and carpooling. If you're planning on buying a car, then consider buying an electric one with cheaper models. Even though electric cars run on electricity produced from fossil fuels, they reduce the amount of air pollution as well as causing fewer greenhouse gas emissions.

I feel like I have a lot of everyday purchases especially food so if we all cut down on our everyday purchases like food or stuff that we don't need but want like toys or video games (physical copies) then our carbon emissions would go way down as well we would have more food to help out other countries that may be struggling with hunger and we would also have more toys to donate to struggling families.

Instead of putting out more carbon emissions in the air we could start to bike to destinations rather than driving for a minute and a half to get there.

I think that I should start doing this more I usually take public transportation

I completely agree that that is such an easy and affordable fix. I think a big reason our society doesn’t just all bike is how lazy people are getting. People eat so much fast food and don’t exercise enough to balance. This is a big problem and personally I am trying to walk/ bike more often when possible. Cars that are gas powered produce so much carbon and it’s pretty easy and it saves so much money to not drive often.

I think a great way cities can reduce their carbon footprint is installing mandatory solar panels. Solar panels are really easy to install and once done produce very limited amounts of carbon. To start off solar panels could just power lights and small appliances. As the solar panel technology gets more advanced they can start to be the main energy source for heating, cooling and now major appliances as well. Once we get to this energy saving form of electricity, the world will burn way less fossil fuels, reducing the amount of carbon in the atmosphere.

Make sustainable city is easy ? Why it's difficult ?

yes

Cold Fusion, or low-energy nuclear reaction (LENR) is basically a hypothesized type of nuclear reaction that should occur at room temperature. There is currently no widely accepted theoretical model that would allow cold fusion to occur.

Theoretically, it should provide virtually LIMITLESS energy and minimal nuclear waste, and pretty much no environmental impact compared to, say, fossil fuels.

See, current nuclear power plants use nuclear fission (not fusion), which, as the name suggests, consists of splitting heavy atoms (such as uranium-235 or plutonium-239) into smaller fragments, which releases a large amount of energy. The problem is, along with energy, fission also produces additional neutrons and radioactive fission products.

These radioactive fission products are typically unstable isotopes of elements such as cesium strontium, iodine, and plutonium. These isotopes decay and emit radiation in the form of alpha, beta, and gamma particles. Some of these isotopes can remain for thousands to millions of years.

Cold fusion, on the other hand, is a nuclear reaction which is quite frankly the opposite of fission. It involves two like atomic nuclei (often involving hydrogen isotopes such as deuterium and tritium) merging together to form a heavier nucleus (helium nuclei), releasing a significant amount of energy in the process. he energy released is due to the conservation of mass into energy, described in Einstein’s famous equation, E=mc^2, because if you look at the mass of the reactants and compare it to the mass of the product, you’ll find that its not equal, which means some of the mass has been transferred into energy.

The reason this occurs is because the speed of light (c) is a very large number, even the smallest of mass could theoretically be converted into a large amount of energy. This process occurs at near room temperature. This low energy requirement reduces harmful nuclear byproducts. Hydrogen isotopes are also relatively lighter than nuclear fission reactants, and therefore should generate more stable elements.

If we can somehow harness this release of energy, it could be a potential source of clean and abundant form of energy, proving to be superior to the fossil fuel and nuclear fission energy we use today…

(if ya read all of that congrats u officially don't have the attention span of a 6 year old yayyy)

.

This is true, I agree.

I completely agree because E=MC2 is one of the most famous equations developed by albert einstein and this is completly true. The speed of light squared is actualy about 9 times 10 to the 16 power m per second which just shows how much limitless energy we can get.

Yes, but what is the cost of doing such things, and how would we go about doing this? Would the practice methods be sustainable?

I love this and I completely agree! I am someone who is highly interested in nuclear physics and the use of nuclear power (which is why I have 235 in my username), and it's always great to see others take an interest in it as well. It's disappointing that a lot of people tend to shy away from anything that involves the word nuclear since they immediately equate it to being disastrous. The use of nuclear power, especially cold fusion, is very interesting and I think that if more people took the time to learn about it we would be more open to using it.

lmao i was pleasantly surprised when my post from half a year ago got a reply

Converting to energy-efficient buildings offers significant economic value both in the short and long term. Energy-efficient buildings reduce operational costs by lowering energy consumption, leading to substantial savings on electricity, heating, and cooling. This reduction in utility expenses can offset initial investments in energy-saving technologies like better insulation, energy-efficient windows, and smart lighting systems. Additionally, energy-efficient buildings often increase property values and attract tenants or buyers who prioritize sustainability, creating a competitive advantage in the real estate market. On a broader scale, reducing energy demand also alleviates pressure on power grids and reduces the need for expensive infrastructure expansions. Government incentives and tax breaks for adopting energy-efficient technologies further enhance the financial appeal of this conversion, making it a smart economic choice for both individuals and businesses.

https://www.energy.gov/eere/energy-effi … 0Champion.

I understand that people love living in big homes and having a mansion of their own, but let's be realistic, no one needs a house that big for one person or even a whole family unless you bring an entire city with you. It's a waste of resources and basically living space. It's even expensive, so here's what I suggest, we can do compact living and only live with what we need, that was we'd always have money saved, our house would be easier to manage, and we wouldn't be raising our footprints so much. And I know some may say that a studio apartment can be much more expensive than normal housing, but that comes down to the person and how far they're willing to go to search for sustainable housing and something within their means. Not above it.

I 100% agree with this and how compact living would lower our carbon footprints drastically. Now, I'm not going to say everyone needs to change the way they live to complete minimalism; however, I feel if people lived with a minimal amount of devices and avoided living in excessively large spaces, there would be a large decrease in resource use and our carbon footprints.

I also agree on this matter, a lot of land and habitats have been cleared for big houses to only house one or two people only for the house to end up being abandoned and left there for years or even decades. It is undoubtedly a waste of resources.

Although you may think that public transit can give off more carbon due to things like trains and subways being much bigger than the average car, that is actually not the case. Especially with big family cars like S.U.V.s, the standards car companies have to meet is much lower than the criteria that average public transit has to follow. Public Transit is made to have their vehicles emit less and less carbon every year, something that most companies do not follow. According to newyorker.com, car companies are able to classify S.U.V.s as trucks, making it so the window of carbon they are allow to emit is much larger than the average car. To conclude, yes more public transit is a solution to help stop climate change of carbon emissions.

I never knew that fact about SUVs and I'm also glad that you included a cited source as well. People should switch to public transit or at least try to find a more sustainable means of traveling. If cities were more walkable, we wouldn't even have to worry much about transportation in general!

How much of an impact do highways have on the environment?

Taken from the FHWA:
In the United States today, traffic and roads are strongly implicated in many of the major environmental problems: air and water pollution, heavy energy use, fragmented farmland and habitat, wildlife and biodiversity losses, and disruption of ecological communities

While they can help us travel, they do contribute to major pollution. However, they do have solutions for animals being separated, with building highway crossings, such as the one below.

I believe that a great and fairly easy way to reduce carbon emissions in big cities is to make them more walkable. Some ways to do this are
-Lowering the speed limit
-Investing in public transportation
-Planting more trees and plants
-Maintaining sidewalks and crosswalks
-Making roads accessible for disabled people
These actions provide a very clear result, which is a less vehicle-dependent city, this can in turn lowers emissions and according to CNU, reduce greenhouse gas emissions by 4 tons a year. Not only does creating a walkable city make it more sustainable, but it also increases the health and even life span of residents.
https://www.cnu.org/publicsquare/2021/0 … t%20suburb.

I definitely agree. If you look at any large city in the US, it is built for cars, not for walking or biking. But if you look at many cities in Europe, it is quite the opposite. There are tons of people walking and biking, this was even the case for the US before automobiles became a "necessity" in our lives. While it is true that they are a quick form of transportation, it would be much more efficient and eco-friendly if we go back to streets that are made for people, not cars, and if we finally normalize HSRs in the US. Many well developed countries like Japan, Germany, France, and more, all do this.

Recycling Centers almost everywhere in the city

Why are sustainable cities important?
I think that sustainable cities have a great impact on enviroment.
In particular in the reduction of the emissions coming from factories and vehicles, and mostly about the emission caused by energy prodution from fossil fuels.

What do we mean with sustainable cities?
A sustainable city is a kind of city that focuses on reducing waste and emissions by using renewable energy and electric vehicles.

In conclusion i think that the future needs sustainable cities not only for our wellbeing but also for the future generations.

I would agree. Sustainable cities, along with the points you already mentioned, would raise awareness about climate change. Something I find particularly concerning is the variation in the CO2 levels. Just at my own school, CO2 concertation ranges between 450ppm and 850ppm, a different of almost 2 fold. When designing a city, I think it is important to ensure that a different area of the city doesn't suffer from one area "green" (eg. having factories all in one place, pollutes one area, but keep the rest clean)

I completely agree! Cities are one of the main contributors to carbon emissions (70%), and making them more sustainable would reduce CO2 substantively. In terms of transportation, I think that we could go even further than electric vehicles and have the main form of transportation be walking/biking. Since cities are pretty compact and everything is relatively close together, the majority of places could be accessed without even having to use a vehicle. Current cities can be pretty dangerous for bikers or pedestrians, so to encourage it in a sustainable city there could be certain streets or areas that don’t allow cars. I went to Portugal last Spring and there were barely any cars, many of the streets were just for walking, and you had to park your car outside of them and walk in. Not only would this be better for the environment, but getting more cardio would also improve people’s physical and mental health. (I do realize that walking would be an issue for people with disabilities, that would be a separate problem to figure out).
https://www.nrdc.org/issues/sustainable-cities#overview

To make the city more eco-sustainable, we should all use means of transport that do not pollute like bicycles as much as possible. These are excellent if you have short trips to make, but if the trips are longer it is better to avoid the car and take some public transport to reduce pollution.

I agree with this completely. I think that it would be amazing if more cities could incorporate opportunities for more eco-friendly transportation like biking and walking. In addition to eco-friendly transportation cities could even take it a step further and make buildings more sustainable to help conserve energy and water. Solar panels are a great addition to homes and buildings. My house has solar panels and 70% of our electricity/energy is generated from the sun. Not only is this eco-friendly, but it helps lower our electric bill each month. If more buildings used solar panels it would help the environment and be more cost efficient. Another thing that I think would be a great addition to buildings would be a water conservation system, complete with things like rain catching technologies (ex. rain basin). These technologies would be cost efficient and help to conserve water. The water caught by these technologies could be used for things like pluming. To sum it up, I think that eco-friendly transportation and also sustainable water and energy systems would help to lower a cities overall carbon footprint, and I think that more cities should start implementing these things to be more climate conscious.

I was shocked that my transportation (mainly air travel )took up more than HALF of my carbon footprint. I feel like the normalization of air travel undermines how harmful airplanes are to our atmosphere. According to the Environmental and Energy Study Institute, 70% of airplane exhaust is CO2, and after being emitted, 30% of that gas is naturally removed from the atmosphere over 30 years, 50% disappears within a few centuries, and 20% stays in the atmosphere for thousands of years. As air travel increases, I can't imagine how much unnecessary carbon would end up just because of planes. I think that we should stop normalizing unnecessary air travel and educate others about its detrimental impact on our atmosphere. Additionally, I think we should also stop normalizing the frequent use of private jets, and how we should stop turning a blind eye to celebrities like Taylor Swift's carbon footprint. The idea of using private jets to travel from place to place is unbelievable because how can you not start thinking about how much carbon you, a single person, contribute to damaging our atmosphere?

Use more public transportation so less individual pollution

I agree with your idea and I think it would help a lot to reduce the pollution, but in my opinion the vehicles in a lot of cities need to be "updated" to guarantee to all of us the possibility of being more eco friendly.

Sustainable cities are the notions of the future, cities that are delineated to manage the needs of environmental and lucrative impact for the world. Meaning, that these are urban cities that are managed by creating green areas, green neighborhoods, environmental infrastructure, and eco-friendly substitutes to our original ways. Usually, when sustainable cities are spoken about, we usually speak about public transportation, walkable and bikeable neighborhoods, solar panels and farms, green building and architecture, solving our food production processes, easily attainable public resources, the conservation of water, as well as waste management. However, have we ever gotten into the depth of these truly transformative ways to live?
Approximately 1,023 million metric tons of Carbon divide are produced just from U.S gasoline and diesel only. We are speaking about just one single country, one country, the United States. What about the other countries? Combined, this is enough to weaken and allow the carbon dioxide emissions to grow exponentially. 75% of carbon monoxide pollution is created by transportation. Sustainable cities have offered alternatives besides driving individual vehicles, such as metro systems, rail transport, and creating cycling or walkways. Metro systems are rapid transit trains that consist of several cars that are run on the multiple-unit system. Rail transit is one of the fastest forms of ground transportation, using locomotives powered by fuel or electricity. Investments in bike lanes and pedestrian pathways have been encouraged for a number of reasons. Among the most effective modifications that communities can implement to meet their sustainability, economic, and social objectives are walking and bicycling, active transportation, and the lowest carbon forms of transportation.
Green architecture promotes energy efficiency, reuse and security of building materials, the use of renewable energy sources, and their need to lower the negative environmental effects. For instance, buildings such as One Central Park in Sydney, Australia. Once Central Park has 35,000 green wall plants inside it. They prioritize saving and reuse wastewater for irrigation and waste. These smart designs ensure to create structures that benefit the environment and communities of the world. Tao Zhu Yin Yuan in Taiwan has an “Anti-Global Warming and Carbon-Absorbing Ecosystem” according to  Amazing Architecture.
We have time, we still do. So many years have passed and we state that we will do something but we usually don’t. If the world eventually burns out due to everything we have done, who will tell our story? We’re running out of time, we have a limit, so what can we still do? What can we do while we have more time? We may start fixing the globe by fixing the large cities where we reside and the ones that are often traversed by cars. Have we done enough yet? No, we haven't. We have to press forward. We are paving the path to reject waste and significant carbon emissions from the world we live in by creating sustainable cities.

No, the short and simple answer is no. Nothing we do is going to fix the Earth right away. The Earth is way too broken and harmed for simple and unnoticeable actions to be taken and for it to actually work at all. Cites contribute to a lot if not most of the pollution and climate change that causes harm to the earth. Sustainable cities can do a few things to help though, such as, using renewable resources, having lots of sidewalks, opting for a mass transportation system, and slowing down energy consumption.
Using renewable resources would really improve any area in the world, but definitely areas with mass amounts of people with energy surges like no other. Cities are notorious for using so much power and this would really improve the carbon footprint of cities if most cities could use renewable energy. While yes it can be very expensive to start and maintain, the benefits much outwardly outweigh the price.
Having lots of sidewalks, or bicycle trails give more opportunities for people to walk or bike places, rather than driving. While, this is not just a problem for cities, it also for people that live further out. If there are more places closer to where people are they wont need to drive, or better for the people who live farther out of town where it is not ideal to walk into town when need be they could opt for mass transportation, such as bus or carpooling. This also would help more if electric or fuel efficient vehicles were used.
Slowing down on energy consumption in cities could really help with their carbon footprints too. Not using as much energy could benefit by not having to make as much, whether that is by renewable resources or carbon resources. Just not using as much puts so much less carbon into the atmosphere, helping our carbon footprints decrease.

https://www.repsol.com/en/energy-and-th … dex.cshtml
https://www.thegef.org/what-we-do/topic … ble-cities

In a city like EcoCity, the focus would be on reducing carbon emissions and promoting a sustainable lifestyle. There would be a good public transportation system, like trains and electric buses, so people can move around easily without needing cars. Buildings would be energy-efficient and use renewable energy sources like solar power. There would be lots of green spaces and areas for recycling and composting. Living in EcoCity would mean having access to modern urban life while also caring for the environment.

Solar energy is a great way to bring down schools carbon footprint. By using solar energy we bring down carbon footprint by a lot. Granted, if we only use solar energy seven out of the 10 months when were at school it would still make a difference. For the other three months, we could use the same energy we use today in our school. According to Energy Sage, the benefits of putting solar panels in our environment is important because solar panels aren't just good for the environment, they can also provide serious savings. How much money you can save varies based on several factors including your location, current energy usage, the size of your solar panel system, and most importantly, the price you pay for electricity. For example, if you currently pay $150 a month for electricity, you’ll save about $65,000 over the next three decades. Most solar shoppers save between $20,000 and $96,000 on electricity over the lifetime of their solar panel system. In this article, we'll walk you through what you need to understand how going solar can save you money and how to figure out what your savings will be. There are a bunch of other ways that solar energy can help our school. Like how much they will reduce your carbon footprint. The significant financial returns are a compelling reason to invest in renewable energy, but money isn't the only thing solar panels save. When you install solar, you also reduce CO2 emissions by limiting your fossil fuel consumption. Thank you for reading and here is the site it used www.energysage.com.

In this city, imagine a network of pedestrian-friendly streets lined with bike lanes and green spaces, encouraging walking and cycling. Public transportation would be efficient, powered by renewable energy sources, and easily accessible to all residents. There would be an emphasis on mixed land use, with neighborhoods designed to reduce the need for long commutes. Renewable energy sources like solar panels and wind turbines would dot the landscape, providing clean power for homes and businesses. Waste management would prioritize recycling and composting, minimizing landfill waste. It sounds like a city designed for a sustainable future, and definitely a place I'd consider living in!

I agree, I would also consider to live in a sustainable city. People should rely on renewable energy sources like the examples you gave in your text. Our waste should be recycled, which can lessen landfill waste. Renewable energy sources should be accessible to all residents, like you said in your text. I hope that in the future, people could live in a greener city.

In my opinion,nature is our best friend and we need to protect it at all costs! A way to protect is planting more trees. Our city can be more sustainable and organized. The trees gathers the carbon dioxide, protecting us from its danger.

I believe that in order to be able to improve the cleanliness of my city, it is necessary to add as many trash cans as possible, each one for a certain category, either paper, or plastic, or cardboard, and that there are no more normal trash cans. In this way we make the work of garbage collectors easier.

There are many things we can do to make the city more sustainable, and we can start by reducing energy consumption at home by replacing regular light bulbs with LED ones and by using energy-efficient household appliances. We can also use public transport or a bicycle instead of a personal car to reduce pollution

In my opinion a way to reduce the carbon footprint in a city is by promoting renewable energy sources like wind or solar power.

I think one of the ways we can reduce the carbon footprint of a city is restricting the usage of old and polluting cars.

Use more public transportation so less individual transportation waste

you can save some heat, you can use some blankets to warm yourself instead to turn the heat to 25 degrees C

I agree it would be better to just get some more blankets rather than turning your heat up a lot. Also if you do have some blankets people should use those and turn their heat down cause I feel like a lot of people have the blankets and maybe even use them but don’t turn the heat down.

An electric car only produces about 200 grams of CO2, they are very efficient. Electric cars are also more expensive than the average gas car. The price is 17% higher for a new electric car than a gas car. A family is going to worry more about putting food on the table than buying a sustainable car especially if the price cost is higher. As these cars become more widespread the price of them may go down. The question is how can we make them more affordable now? Hybrid cars might be part of the solution. They are around the same cost as a gas powered car, but are much more efficient in burning fuel.

Although Sometimes it may seem to be easier to use a car, cars create so much carbon admission into our air, contributing a lot to climate change. Although sometimes using car might not be avoidable, trips that you could use other form of transportation that might be more sustainable would overall help reduce your carbon footprint. Especially in the city I live in I have lots of access to bike routes near me, making me more likely to chose biking to places  instead of going by car. Some places though might not have the access to safe bike routes, but they might have access to forms of public transit, like the bus, and or sky trains, which can also reduce carbon admissions. I think finding other ways of transportation can help us reduce carbon admissions into the air helping us create a more sustainable city.

I agree that your ideas would decently reduce carbon emittions but for most people not using their car is not a viable possibility, everyone taking way less planes would be a much more effective way to reduce carbon emittions.

The sustainability of a city comes down to the residents living within it. If promoted
enough, our city's health and well-being can become our top priority as citizens. Some ways that we can help the sustainability of our city are considering our energy use, promoting sustainable ideas to our communities, reducing, reusing, and recycling. These are just some ways we can make our environment a healthier and safer place. When I say promotion, I mean any form of eco-friendly public marketing. This could be via social media, through presentations to your community, or advertisements. Promoting new and healthy ideas is a different form of education than trying to change people's habits; like meat consumption. So instead of spreading ideas attempting to change people's lifestyles, we can bring awareness to small actions that we can take towards making our city a better place.

I agree. In order for our communities and cities to be a sustainable living space, people need to be informed and educated about the alternative options. This makes the chance greater for people actually able to act on the new ideas. People could create posters/flyers and hang them up places around town. One thing I would recommend a good sustainable option for people to actually act on is creating green spaces in communities. This could include things like planting trees (which are a great option to reduce carbon because they are carbon sinks), planting a garden etc. Or even other things like having a place in town where people could go and pick up reused materials to repurpose. All of these things require talking to people and educating them about these alternatives that are effective and worthwhile to implement.

Green roofs contribute sustainable energy to urban environments and also enrich the biodiversity of the area. Green roofs are said to improve the morals and hope in communities. Green roofs not only reduce the carbon emissions by over half a gigaton annually, but they also remake habitats that were destroyed from urban construction. Green roofs are very good steps in helping cities sustain themselves and help the environment.

I agree. Another big positive that green roofs is that they are very resilient to variations in conditions. They are proven to last a long time and stay effective during most of their lifetime.

A sustainable city is a smartly planned city that tries to meet people's needs without harming the environment. These cities make wise use of resources, such as eco-friendly building materials and renewable energy sources. They have excellent public transportation, a large number of green areas, and efficient recycling programs. The long-term preservation of nature and the improvement of living conditions for locals are the two main objectives. Sustainable cities encourage people to live well without endangering the environment by demonstrating how to do so.

More cities should become sustainable around the world. By using electric public transportation like buses, taxis and electric bikes/scooters. It would reduce the carbon emissions a lot.

Cities can encourage modes of transportation such as biking or scootering by giving roads bike lanes and encouraging bike/scooter rentals or shops. This would lower  the amount of cars used. This is important because cars contribute greatly to climate change, about 20%!

I agree with what you have said here. I would like to add on and say that if more people switched to electric instead of gas cars, air quality would get better and pollution would decrease a lot but also, if electric car companies made electric cars more cheaper, they could be more affordable as the reason a lot of people have gas cars is because they are cheaper and people can’t afford electric cars because of their price. Also I feel that a lot of people know about electric cars but don’t fully know how it would actually benefit our earth if they switched from gas to electric. Electric cars are also more quieter, so if you don’t like too much noise, an Electric car is the way to go!

I agree with this for cities and places where things people need are close together. In rural areas, people dont have the ability to do those things. However, there are electric cars that would help. The problem is that they are so expensive. Another thing that would help with man powered vehicles is weight problems. At least in America, 2/3 adults are overweight. This is a big problem in our country. In conclusion, if you are able to have a man powered vehicle that is great but an electric car works too.

One big step that we could take to make cities more sustainable is getting electric busses, taxis and trains in big cities could make a huge difference think of a big city near you and think of the huge amount of cars, taxis and busses all of those are emitting huge amounts of carbon and greenhouse gases but if taxis, busses and trains were electric than that would reduce the amount of emissions by a huge amount.

Greetings,

I am thrilled to share that Badajoz is pioneering an eco-conscious transformation within urban transportation by implementing a fleet of fully electric buses. This initiative positions Badajoz as a leader in ecological transportation efforts, setting a remarkable example for cities globally.

The introduction of electric buses brings forth numerous environmental advantages. These zero-emission vehicles contribute substantially to the reduction of air pollutants, offering residents a breath of fresher air and a step towards a more sustainable lifestyle. The quiet nature of electric buses also means a more peaceful urban environment, free from the rumble of diesel engines.

At my digital marketing company in Badajoz, we are inspired by Badajoz's commitment and have adopted our own green practices. Every team member is an active participant in our comprehensive recycling program. In harmony with the city's green vision, our offices are energized by solar power, harnessing the sun's sustainable energy to fuel our innovative marketing solutions.

By integrating these eco-friendly practices, we aim to not only minimize our environmental impact but also to contribute positively to the planet's well-being, mirroring the forward-thinking spirit of Badajoz.

Your Post
A sustainable city is important especially with the climate change issue because of all the greenhouse gases. Transportation is a big part of a cities carbon emissions, according to a post made by our world in data a train, walking, or biking are all the most efficient ways for low carbon transportation. Walking or biking is also a great way to do small workouts making for a healthier city.

https://ourworldindata.org/travel-carbo … o%20travel.

sustaining our city

I agree with what you're saying, if citizens make mire of an effort not to use their car, it can call for a better world with a decreasing amount of carbon. If people walk, bike, or take public transit to their nearby activities and work, instead of going by car it can be the first step you take to living an eco-friendlier lifestyle and cause for your city to grow more sustainable. On the counter point people may not live in a central enough area to bike, walk, or bus to their destinations. It can be time consuming and crowded and an environment that some don't feel is a good environment for them. nonetheless i think this is an easy step we can take to reduce the ongoing problem of our carbon footprint. In addition to this we can build and create more public green spaces that are accessible to the public. This is an extremely important action we can take. It can create community, allow people to have an excuse to go outside more often and overall have a crucial role to play in the sustaining of our cities.

In my ideal city, there would be a focus on more eco-friendly methods of transportation like biking and public transportation. Carbon emissions from driving are some of the highest, especially when most cars are powered by gas. To have more developed public transit systems across the globe, would bring down emissions significantly. Also in my city, I would like to be fully powered by renewable energy, like solar and wind. Fossil fuels are the biggest contributor to climate change, so to find alternatives would be incredibly beneficial to bringing down emissions. The rest of the world may never be the same as my ideal city, however, if we make strides to use more renewable energy and use eco friendly methods of transportation, it would make a big difference.

To help make the city more sustainable, the use of more public transport could be established so that people stop using their own vehicles so much to avoid air contamination.

I agree. Compared to cars, public transport saves us a lot less carbon being released into the air by taking a large group of people from one place to another and cars usually take an individual to their destination. However, many people find taking their cars much more convenient than walking, biking, and taking transit. The way I see it, cars are in many ways the easiest and fastest way to get around. The long-term impact this has on our environment makes me rethink this. The amount of carbon piling up in our atmosphere and in organisms is concerning, and carbon being released by cars all around the world isn't making this any better. For things to be convenient for everyone, walking and biking to nearby places and taking cars and public transit to farther destinations is a good way to help the environment.

I agree with this, there should be more public transportation but what if some people don’t feel comfortable with going in a bus or some sort of transportation with other people, some people have different comfort levels and being with people that they don’t know might not be normal for them. I think that there should be electric cars instead with a lowered price, around the same as a gas car because a lot of people have gas cars as they can’t afford electric ones.

I'm going to talk about how we can help make the world a more sustainable place. For first, we would have to eliminate or reduce plastic because it is one of the products that pollutes the planet the most, and find alternatives for things made of plastic. It is also very important to recycle our garbage and reuse. By using public transportation we help to reduce the pollution or using bicycles to go to nearby places. It is also good to eat ecologic foods that come from our earth and not buy everything processed. If all together contribute helping in somethings we can make the world more sustainable place.

As Peter Parker once said, “We always have a choice, it’s our choices that make us who we are, and we always have a choice to do what is right”. Most cars on the road right now run on oil/gas that come from burning fossil fuels. The burning and extraction of these fossil fuels causes a series of detrimental effects on our environment and contributes to climate change. Cars are held accountable for 1/5 of the total global warming pollution in the WORLD! So how can we resolve this issue….? Well, a good alternative to gas powered vehicles are hydrogen fuel cell vehicles. Hydrogen is one of the world’s most abundant elements. These cars can be produced from green hydrogen that is produced from renewable sources such as wind and solar. In hydrogen fuel cell vehicles, a chemical reaction between hydrogen and oxygen creates electricity, therefore powering the car, and the only byproduct is water! Not only are hydrogen vehicles more efficient and eco-friendly, they have a greater range, and are faster in refueling than most EVs. Hydrogen fuel cell vehicles are clearly the way to go!

Recycling is not straightforward, most cities use a single stream recycling system. That means that all recyclables are put together and contamination is much more common. This means that materials have to be sorted and non-recyclables need to be removed, this costs companies a lot of money and makes it unprofitable for business. Single stream recycling also contaminates materials that would otherwise not be contaminated making it unusable .
https://www.youtube.com/watch?v=R7N5a476DKQ

Would you want to live in a sustainable city? I know I would. But, what makes a city sustainable in the first place? Well, there are many factors that can make a city considered “sustainable.” If I controlled this city, some measures I would take to make this city sustainable is:
1. MORE EFFICIENT PUBLIC TRANSPORTATION reduces dependence on fuels that can harm the environment, “taking public transportation reduces CO2 emissions by 45%” (UCLA Transportation), improves air quality ( UCLA Transportation )
2. RENEWABLE ENERGY SOURCES such as wind and solar power: better air quality, reduce reliance on harmful fuels, does not produce greenhouse gas emissions. (Environmental Protection Agency
3. URBAN AGRICULTURE with the increasing population density (population per unit of land area) of urban areas, this can help: citizens meet food requirements, improve health, reduce cost of transportation (farm to consumer), better air quality… hence, reducing carbon emissions ( National Agriculture Library )
4. EFFECTIVE RECYCLING AND WASTE MANAGEMENT less need to use new raw materials from the Earth; reduced deforestation, reduced harming or displacing animals in the wild, less pollution. ( Friends of the Earth UK )

These measures would not only benefit the Earth but also the people, creating an improved, sustainable city.

The sustainability of a city depends on if the city has the ability to take care of all the basic necessities of all of the people in different parts of the city. With most of the focus of how a city is sustainable is of the urban infrastructure of the city as the use of renewable energy like wind and solar energy are integrated in the urban developments. This integration can cause the production of natural gas that can help give more heat and clean power to the city. A main and effective way that this can be implemented in urban development is adding green architecture. Making buildings have solar panels or wind turbines around cities. With Hydroelectric power sources like the Grand Coulee Dam being a big way to give large amounts of clean electricity. With that dam specifically, recorded at an annual amount of 21 billion kilowatt hours of electricity which is enough to power 2 million houses. Hydroelectric power is the largest renewable source of energy in the world right now with it even if being expensive upfront it will be beneficial in the long run as it will grow to be inexpensive and can meet peak electric demand. On top of large amounts of  electricity production it sustains the city by also providing flood control, irrigation support, and clean drinking water.

Here are some easy ways to reduce your carbon footprint:

1.Not buy disposable plastic water bottles for keeping water
2.Have the washer on the cool water cycle
3.Incorporate walking for short distances
4.Turn off AC or Heater when not home
5.Use alternative transportation and carpool 1 day a week
6.Drive efficiently, coast to red lights and use the gas pedal lightly

https://www.austintexas.gov/blog/top-10 … save-money

My family use bicycles for the most part for transport. To get to school and back, I walk an hour everyday. Transport in a sustainable city should be public, like electric trams and trains and most people should walk or ride bikes.

I agree but It is not that simple. Biking and walking take much longer than other modes of transportation and public transportation is not always the best option for people. Public transportation cannot take you anywhere there would need to be large amount of it to be able to provide easy access in every area, and that would be costly and less effective, since less people would be using each shuttle/bus. For some people cars are a better option, still it is important to reduce the amount of cars being used as much as possible

A big part of what makes a city unsustainable is transportation, energy, and waste. In order to fix the transportation problem, Cars release a lot of carbon in order to get energy so a sustainable city should have everything within a reasonable walking or biking distance so that cars are unnecessary and cars and electric transportation should also be discouraged. Also, to keep the energy source sustainable, because a lot of our energy comes from burning fossil fuels, the buildings should all have solar panels. On the topic of waste, we can have more centers for recycling and composting and make sure compost and recycling bins are always available.

What makes a city sustainable? Sustainable cities are designed to lessen the environmental impact on the earth by taking efforts to offer eco-friendly alternatives to your everyday life. One of the most effective ways to improve the sustainability of a city is to encourage and raise the use of public transportation (buses, trains, etc). This benefits the environment by reducing the number of private vehicles being used (and can reduce CO2 emissions by 45%). In the US, it is estimated that an annual amount of 37 million metric tons of CO2 is saved by the use of public transportation. To continue to see this decrease of environmental impact, we need to encourage the addition and use of these transportation options in cities.

https://transportation.ucla.edu/blog/5- … sportation

Aviation accounts for 3.5% of climate change, producing 2.8% of the global carbon footprint. With this in mind, when you travel consider alternatives to flying, such as taking a train or bus, or even driving.Even though driving may produce more CO2, it has an overall lower effect, and if you drive with others, that can further reduce your impact. Another thing to consider is electric planes, which many countries are working towards, but will they come fast enough?

https://ourworldindata.org/co2-emissions-from-aviation

https://terrapass.com/blog/carbon-footprint-of-driving-vs-flying-whats-best-for-the-earth/#:~:text=So%2C%20if%20you're%20traveling,that%20the%20extra%20weight%20would

When was the last time you walked through the city, admiring the sights as you go to buy groceries?  When was the last time you walked anywhere without seeing a gas station on the corner? City infrastructure in this modern day was not made with pedestrians in mind. To the city planners, walking pedestrians are a roadblock, a problem to be fixed. What they are aiming for is a population that drives everywhere to pay for gas, pay the parking tickets, pay the fines for driving a red light. Cities like Amsterdam are the first city to adopt the donut economic model to limit climate impact, and they have been making countless innovations and improvements in many industries, such as low-waste dining, high-efficiency with low-carbon footprint construction, and was home to one of the first startup accelerators dedicated to sustainable fashion.  Amsterdam uses green energy whenever possible for hotels and venues, and continuously improves upon itself in all industries, consistently ranking high up in Schroders European Sustainable Cities Index, along with it’s population being highly dependent on bikes (not electric!), and low use of cars. If I were in charge of planning a city, I would take heavy inspiration from Amsterdam’s infrastructure and laws it has in place. I would put emphasis on making beautiful buildings, and move away from minimalist designs so people would go out more. I would dedicate large areas for recreational activities and gardens/other plants. I would heavily encourage local businesses, with less support given towards large retailers, and provide many trash/recycling bins all over the city for easy disposal.

I like your take on Amsterdam's well made infrastructure- you went into detail about every aspect that was improved, hopefully many US cities will also take inspiration from Amsterdam as well. Although there are some good examples of many US cities with infrastructure aimed to be pedestrian friendly, like Washington DC,Boston MA, and San Francisco.

A sustainable city is characterized by a holistic approach to urban development, with a focus on environmental, social, and economic well-being. According to the United Nations Global Carbon Footprint Index, cities are responsible for over 70% of global carbon dioxide emissions, making urban sustainability imperative for mitigating climate change. Sustainable cities prioritize efficient public transportation systems, renewable energy sources, green infrastructure, and waste reduction programs. For example, Copenhagen, Denmark, serves as an inspiring model, with its emphasis on cycling infrastructure, renewable energy projects, and stringent environmental regulations, leading to a significant reduction in carbon emissions. Sustainable cities like Copenhagen aim to provide a high quality of life for their residents while reducing their ecological footprint, emphasizing that urban areas can lead the way in creating a more environmentally friendly and resilient future.

I think that a way to decrease the emission of CO2 in big cities is to increase public transportation, expecially the electric ones like trams, trains or trolleybusses.

juen i think we can also use bikes, bikes are cheap and really helpfull, everybody can afford a bike and so everyone don't have to pay for tickets for tram, train, ecc

I think another way of facing this problem would be walkable cities. This solution is the idea of people walking or biking rather than driving. This solution is free to anyone and could actually save you money. We would need to make biggger and more side walks for these people. This would combat climate change a ton.

Various cities indeed have aimed to limit and reduce their carbon emissions by ~40% by the year 2050. Without a doubt, we understand that densely populated areas rely heavily on transportation, as commuting is quite frequent when all you see from every corner of your eye are buildings and skyscrapers. With this being said, we need to capture carbon from the air with means of planting enough trees to in the slightest way absorb the carbon emitted into the atmosphere.

We can see many streets in cities, but in contrast to the number of walkable streets, it is unbalanced in ratio. As Charlie915 stated above, we need to expand sidewalks to combat climate change and reduce these cities' carbon emissions.

Incorporating also, more reusable products and things being sold in the cities, will and can help in ways to reduce waste while encouraging recycling.

I agree with this claim, as we have mentioned before, many pollution and other gases have been emitted in the air causing pollution which would soon take over the wildlife. Without this wildlife we would be stripped of a major amount of food. As Joy has mentioned above, we need to look at the amount of carbon emitted into the air, and we should regulate the amount of transportation to a low digit. If we continue to take transportation through cars that need gas or any vehicle, then for sure our carbon footprint will rise and reach tremendous heights. We need to be more self-aware and responsible towards our Earth. We only have one of it.

I agree, increasing public transportation would decrease the emissions of CO2. And like inot flam and Charlie915 said earlier, increasing the number of people who bike or walk instead of driving or riding public transportation could help decrease the emissions of CO2. Making cities safer to walk would be a major help as well, according to the World Health Organization, 270,000 pedestrians are killed every year.

I agree, everyone having their own cars causes so much unnecessary pollution. If public transport took everyone where they needed to go to so much time, energy, and money would be saved by everyone involved. It would also go towards saving the planet.

I completely agree. Especially electric transportation to reduce greenhouse gas emmisions from cars and other vehicles.

In Oslo, infrastructure for cyclists is prioritized to the point that bike routes will often be plowed and salted before car roads. By making it easier for individuals to cycle, more people will naturally be drawn to it. Obviously this model wouldn't necessarily work everywhere in the world (especially in areas with less population density) but it's something to consider. NotJustBikes on Youtube has a good video on this topic. Unfortunately, the automotive industry is HUGE and it is their best interest to build and maintain car dependency.

I agree if cities made public transportations by electric powered vehicles mandatory the carbon emissions would drastically be lowered.

I agree because not only will this reduce carbon emissions but it will also help society globally depending on the design of the public transportation trains for fuel efficiency.

While nowadays many big cities have started to cut back on direct air pollution, not all though, people often forget about dealing with the residual or possibly still growing amounts left over. A National History Museum study found that nine million people die every year as a result of city air pollution. This is why designated green spaces in cities are so vital. As well as improving people's moods, and providing a place for activities like walking, sports, community events, and space for pets to be outisde, green spaces can also help reduce the air pollution and then save people.
Here is a link to the Museum study: https://www.nhm.ac.uk/discover/why-we-n … ities.html

we should really reduce the use of battery because it would pollute the soil and basicly make it unusable.

Instead of reducing the amount of batteries. I suggest all battery brands to switch over to reusable batteries . All my batteries at home are reuse-able. Sure they may cost more than regular ones but, they last for years. How it works is once the battery is dead, you charge them and they are back to normal. I feel like reusable batteries are the way to go. Another question is, what if they die out and where do we dispose them. Not saying that brands will do this but, they could open shops were people can dispose the batteries for money and that will create a whole cycle of using the battery then it dies out then you dispose them at the shop for money.

I like your idea of the battery disposal station. I also think there should be adjustments made that consider the byproduct of certain products and wether or not these creations need to even hit the market. People, firms and laws should take into consideration sustainability when trying to bring a new product to market.

I agree we should stop using non reusable batteries. My family has also used rechargeable batteries and they are also more financially smart to buy

I agree that using batteries is not sustainable for the environment but the cost of just a 4 pack of rechargeable batteries can be expensive for most. I do use them but I end up losing them and or use normal ones again. Is there any other viable option for people who wouldn't necessarily use rechargeable batteries?

I feel if more and more people start using the rechargeable batteries there would be less waste. Even if they are more expensive than the one use ones, you are still just buying them once until you really need to buy them again.

Copenhagen, Denmark is currently the number one sustainable city in the world. They use advanced technology to monitor the buildings energy and water flow. They have vending machines around town that receive plastic bottles for funds that one can either keep or donate to charity to encourage recycling. They use shared resources by participating in district heating and cooling. The power plant used to power the heating and cooling uses biomass to fuel it, while above the surface citizens can ski during the winter or enjoy the paths that sit atop. Pocket parks and rooftop gardens help control urban heat island effect, which cause the cities temperatures to rise. They have a superhighway for cyclists that have traffic lights that are synced to their pace. there are 546 km of bike paths that connect multiple cities. What the city has done was made it convenient for the people. Twenty-four percent of people eat organically because it is more affordable and available.
They continue to discover new ways to live sustainably. The hotels practice sustainable habits by using the dryers only when it rains outside, compost all food in the kitchen, and refuse to give out any single use plastics. Check out their practices here:
https://www.wonderfulcopenhagen.com/won … copenhagen

Having done a presentation on the topic I figured I'd put that knowledge to good use. Whenever we discuss lowering our carbon footprint we probably think about our impact as an individual but focusing on a group, or in this case a location, would work the best. We can all learn to live more sustainably with our environments if we take a look at the cities around us.

Zurich, a city in Switzerland, is a solid pick and the gold standard for sustainable living. Zurich is a city which focuses on pre-planning, meaning it tailors the city based on their resident population(s). Most people are either in walking distance of where they need to be or are able to catch a form of public transport that lowers the individual // group emissions caused by greenhouse gases. I've attached a link for further reading on Zurich for those interested!

( https://www.zuerich.com/en/about-zt/sustainability )

Any future Sustainable City should have:
-renewable, clean energy sources (solar panels on buildings, for example)
-roads and areas dedicated to biking, jogging, and walking
-sustainable organic farms for locally-grown food
-lots of open space and areas with vegetation for the local population
-wilderness areas for local wildlife
-electric public transportation

For any sustainable city you will need to
-encourage other ways of transportation instead of cars
-renewable energy
-sustainable farms
-places near each other so easier to get around

As humans, we can protect our planet by doing little things every day that in the long run, will be benefitial to the prevention of climate change. One way of doing this is carpooling if you and others are going to the same destination like work. Carpooling leads to fewer cars on the road, and lower parking demand, which leads to less greenhouse gas emissions. In fact, half of the carbon emmisions in America come from petroleum vehicles. That's one of the main reasons for the recent spike in electric vehicle sales. But carpooling isn't the only thing we can do. We can bike to our destination, and if that isn't possible, most cities have a reliable public transportation system as well. There are many things that big corporations and the government can do to temporarily "solve" climate change, but it is up to us a society to do our part so we can keep are planet as long as possible.

https://www.c2es.org/content/reducing-y … footprint/
https://tsrc.berkeley.edu/publications/ … carpooling

I agree, daily actions can make a difference

Transportation is one of our largest emissions, this is a good solution plan to this large issue

Any future Sustainable City should have:
-renewable, clean energy sources (solar panels on buildings, for example)
-roads and areas dedicated to biking, jogging, and walking
-sustainable organic farms for locally-grown food
-lots of open space and areas with vegetation for the local population
-wilderness areas for local wildlife
-electric public transportation

In order to build a more sustainable world we can Shift towards renewable energy sources, such as solar, wind, and hydroelectric power. Adopt more sustainable agricultural practices, such as agroforestry and organic farming. Prioritize conservation and protection of biodiversity. Shift towards a circular economy.

This is a really good explanation and ideas, also adding more protected forests can help!

Families all around the world produce carbon in the environment. However, how exactly does this affect the city and how should be world to make it sustainable? In cities, a huge amount of factories also cause emissions and the purchase of goods is huge in the development of carbon. Holiday shopping was one of the most detrimental factors in the carbon in the environment. Holiday shopping brings the development of new goods. Shopping in person can also cause more carbon to be in the environment, making online shopping appealing and helpful for the limitations of carbon in the atmosphere. However, shipping things brings lots of carbon into the atmosphere. As many may know, transportation is huge for the development of carbon in the atmosphere. The constant delivery of goods to homes brought carbon into the atmosphere. Unfortunately, limiting the amount of carbon in the atmosphere is difficult due to the needs and movement of many throughout families daily lives.

When you say "Carbon from Families," I think you mean carbon emissions produced by individual houses or families. Household carbon emissions contribute to the overall carbon footprint and can have a number of environmental consequences: Carbon dioxide (CO2) is a greenhouse gas that traps heat in the Earth's atmosphere and contributes to climate change. The use of fossil fuels for heating, cooking, transportation, and power generation emits CO2 into the atmosphere. CO2 and other greenhouse gases emitted by humans contribute to global warming and climate change, resulting in a variety of environmental repercussions such as increased temperatures, changing weather patterns, and sea-level rise. Air Pollution: Many home activities entail the use of fossil fuels, such as driving with gasoline or heating with coal, oil, or natural gas.

Sustainable cities is a very contradictory term considering they consume 80% of global energy and are responsible for 70% of greenhouse gas emissions. But this is all the more reason we need to switch to making our cities more sustainable. It is also predicted that by 2050 as much as 70% of the global population will live in cities. This large amount of people will generate huge amounts of waste and pollution and threaten the biodiversity of our cities. This is why we need to make the shift toward compact, low-carbon, resilient cities. There are some organizations already doing this, for example the program UrbanShift. This program supports 23 cities in 9 countries and is working on implementing a low-carbon infrastructure, sustainable waste management and nature-based solutions for urban sustainability. We need more people to take action like this because as the population grows there will be more people living in Cities and we will need to accommodate them while still taking a sustainable approach. To do this we need to create more sustainable transportation and lower our use of fossil fuels in general. We also need to create sustainable living spaces in order to lower our greenhouse gas emissions. This will be a hard process but I believe if we stay committed we will be able to succeed in making cities sustainable.

Works Cited
Global Environment Facility. Sustainable Cities. Global Environment Facility, https://www.thegef.org/what-we-do/topic … ble-cities.
The Global Goals. Sustainable Cities and Communities. The Global Goals, https://www.globalgoals.org/goals/11-su … mmunities/.
UN environment programme. Sustainable Cities. https://www.unep.org/regions/asia-and-p … ble-cities.

Our cities are rapidly growing with inhabitants and the space they occupy. About every minute, we add 10,000 meters of this city space. This development requires us to think about how we should change the way our cities are engineered. Cities are a main contributor to climate change. Today, cities take 3% of the earth's land, but take two-thirds of the world's energy demand and account for over 70% of global CO2 emissions. Most of this comes from industrial and motorized transportation that uses huge quantities of fossil fuels and infrastructure constructed with carbon materials. Almost half of the world's population lives in cities, which will likely increase by two-thirds by 2030. So how can we contribute to creating a sustainable city?
We can first start by lowering transportation emissions. Transportation emissions account for roughly 28% of greenhouse gas emissions. These forms of transportation primarily come from our cars, trucks, ships, planes, and more. Some strategies for transportation can be fuel economy and fuel efficiency. Fuel economy is how far a car can go using a set amount of fuel and is measured in miles per gallon (MPG). Fuel efficiency refers to how efficiently a vehicle uses fuel and can be improved through driver technique and maintenance. We can save fuel by using carpooling, riding transit, biking, or walking to a place. These are some ways that we can reduce emissions from transportation. Next is electricity production, which takes up 25% of gas emissions. Electric power generates the second largest share of greenhouse gas emissions. 79% of our electricity comes from burning fossil fuels, coal, and natural gas. As individuals, we can do simple things such as turning off any electric devices completely such as, computers, televisions, video games, and other electronics when not using them. If you have an air conditioner, you can limit the use of it. These are some ways that we can help control our carbon footprints and help to overall maintain a sustainable city.

Works Cited:
epa.gov.
-Fossil Fuels-https://www.epa.gov/nutrientpollution/sources-and-solutions-fossil-fuels
-https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions#transportation

des.nh.gov-
-https://www.des.nh.gov/climate-and-sustainability/transportation/emission-reduction-strategies#:~:text=Conserve%20fuel%20and%20protect%20the,to%20reduce%20emissions%20from%20transportation.

blogs.worldbank.org-
-https://blogs.worldbank.org/sustainablecities/cutting-global-carbon-emissions-where-do-cities-stand#:~:text=Cities%20account%20for%20over%2070,constructed%20with%20carbon%2Dintensive%20materials.

sustainable transportation refers to low- and zero-emission, energy-efficient, and cost-effective forms of transportation, such as electric and alternative-fuel cars and domestic fuels. I think sustainable transportation is important since there are over 8 billion people on the planet, and most of them are going in the same direction. Why not save the earth while you head to work? Taking a bus could reduce the carbon footprint. there is room for 40-80 people on one bus and buses use about 137.2 miles in a day compared to a car's 137.4. Using a bus is a very obvious answer to the carbon footprint, but if you travel far and wide I might suggest an electric car that can be charged instead of using gases created in horrible conditions. All in all you should use buses and electric cars instead of gas cars.
https://www.codot.gov/programs/innovati … ransit.pdf

https://afdc.energy.gov/conserve/public … ation.html

Climate change has been one of the biggest issues that humans have ever faced on earth. Numerous studies have shown that humans are the main causes of the recent spikes of carbon dioxide and other greenhouse gasses in our atmosphere which carry on to affect not only humans but the entire earth as well. As of 2022 cities have accounted for 70% of carbon emissions. Things like electricity, heat, and transportation all are the main producers of greenhouse gas emissions. The solution to the recent spike in climate is not to eliminate these necessities but to change the power source. If humans can switch to a more environmentally ethical power source, such as solar power, which is powered by the sun, humans can enjoy sustainable cities as well as restore the earth's environment.   
https://blogs.worldbank.org/sustainable … 0materials.

Cities are responsible for around %70 of emissions. How do we decrease this number? One thing that cities can do is to improve their infrastructure. We need to create sustainable cities. These cities must be eco friendly and environmentally caring. Some ways to make a city more sustainable is making larger sidewalks and more bike lanes so people can move around their city in other ways than just driving. Also cities must improve their public transportation. In some cities public transportation is very good and some people don’t need a car. In other cities the public transportation system is not run well and is not able to transport as many people to more places. Another way to make a city more sustainable is water conservation. There is very very little fresh water on this planet, and when cities dump all of the rain water back into the ocean it’s waising millions of gallons of drinking water for its residents. These are some ways to make a city more sustainable.
https://www.weforum.org/agenda/2020/09/ … structure/
https://www.thezebra.com/resources/home … able-city/

Sustainable cities are not only achievable but within reach with nudges in the right direction. Many of the technologies for a green city have been developed already such as efficient means of transportation, green building and building materials, and green power supplies. One way in which buildings are already going greener is with green roofs these offer a nice outdoor space for the residents but also improve their environmental impact. While roof gardens are cool they don't affect that much adding greenery to an entire building significantly helps its carbon impact. A less structural change to make cities greener and nicer is planting more trees and adding trees along with painting the roads another color. Both of these would significantly decrease the heat bubble effect in cities making them more livable and environmentally friendly.
https://www.thezebra.com/resources/home … able-city/
https://www.thegef.org/what-we-do/topic … ble-cities

If i were a mayor for a city the first thing I would do is to stop making gas cars and encourage people to use electric cars. This would bring down co2 emissions and would help out the cities footprint. Another thing I would do is make public transfer cheaper so, people will use it more. Also, there will be public accessible bikes that will be free. I would build more vegan and vegetarian restaurants to encourage people to try a plant base diet.

Everyone is talking about the bad influence of gas cars on our environment but nobody does much about it. People who have great political power could do much about it, for example, try to lower the prices of electric cars and give people cash incentives because many people can't afford them. There are also many problems with the public transfer, but also many solutions. I think that we should make some changes in the public transfer so more people would use it. I don't have the best experience with it in my city so I don't find it strange that some people don't want to use it. It would also be good if cities were better suited for cyclists and other sustainable vehicles. It would be difficult to get many people to try a plant-based diet, so better, more sustainable ways of raising food animals would need to be developed.

In addition to producing electric cars, they should make electric public transportation. I take the bus to and from school 5 days a week, and although it is better than individual driving, it still emits a lot of greenhouse gasses. Because electric vehicles do not rely on fossil fuels for power they do not emit carbon dioxide which helps reduce air pollution. Electricity has many ways of being naturally produced such as solar panels and windmills. As opposed to gases made from pulling fossil fuels from the ground.
https://www.samsara.com/guides/how-are- … vironment/

When I calculated my carbon footprint and looked through the different carbon footprints of schools I could see that just one person’s carbon footprint can’t make a big enough difference on climate change. I think that to make a big difference cities as a whole have to change. Cities only take up 3% of land on Earth, but amount to 60-80% of energy consumption and at least 70% of carbon emissions and in 2018, 55% of the world population lived in cities. This number is expected to rise to two-thirds of the world population by 2050. https://psci.princeton.edu/tips/2020/6/ … ble-cities This means that an effective way to reduce the world wide carbon footprint is to change cities as a whole, not just one person. As cities inevitably grow they should use more sustainable practices. A few things cities can and should do is invest in public transport, create green public spaces, and make urban planning and management more participatory and inclusive.
https://www.iea.org/reports/empowering- … ero-future For a more carbon sustainable future cities need to change and grow to be more sustainable as a whole. People should push their city to become more sustainable to make a bigger impact on saving the planet.

based on the information from https://psci.princeton.edu/tips/2020/6/ … ble-cities and https://www.bloomberg.com/news/articles … re-greener Larger cities with more money tend to be more sustainable based on population size. Big cities like Adelaide Copenhagen and San Fransico have in place a plan over the following years to become mainly if not completely sustainable. Larger cities also have the advantages of things being closer in proximity to the things needed on a daily basis. They also have advantages like public transport like buses, trains, and carpools. In most of these cities, the average family has a lower carbon emission, because they are newer and have more efficient ways to use energy, resulting in less carbon dioxide emissions.

Your argument that cities and areas with more money tend to be more sustainable is valid to some extent. Wealthier cities and regions tend to have better access to resources and infrastructure, which can contribute to a higher level of sustainability. However, many low-income communities have shown a commitment to sustainable practices, such as community gardening and recycling programs, despite their limited resources. Some people make these gardens to better the area they are in, like these people from Boston (https://nextcity.org/urbanist-news/Lati … ens-Boston)
Furthermore, wealth can also contribute to unsustainable practices. For example, people with higher incomes tend to travel more, which is one of the main sources of climate change because of coal, oil, and gas. [(https://ourworldindata.org/co2-emissions-from-aviation) Additionally, rich communities may prioritize economic growth over environmental protection, leading to a disregard for sustainability concerns. While there are areas like San Francisco that influence sustainability in their city, it doesn’t mean all richer areas are going to be more sustainable.

Economically prosperous cities/areas are capable of maintaining sustainability, however, that doesn't necessarily mean they will. In an article published by The Environmental Science Journal for Teens (https://www.sciencejournalforkids.org/w … rticle.pdf), they state that people with higher incomes are able to engage in excess consumerism. These indulges include flying planes more often, driving more, and purchasing more. In comparison to the average working class, higher income people emit more greenhouse gases. My point being that, having more money doesn't equate to sustainability. Also it should be noted that, since we live in a capitalist society, cities and corporations benefit from more item productions and purchases. This greatly contributes to greenhouse gas production. The University of Manchester (https://sites.manchester.ac.uk/global-s … te-change/) adds that capitalistic reform is necessary in reducing our damage to the Earth. This brings up the issue of civilization prioritizing monetary value over our planet's well-being. So in short, is it possible? Yes, but we, as a community, must disregard the materialistic, and dangerous, practices we've put into place.

in my town we can't reduce so much the consuption of fossil fuel,because we don't live in a big city where there are busses every 5 mins so we need to use our car to do or go everywhere,if the busses arrive every 10-15 mins i guess it will reduce so much. what can we do? can modern tecnology help and how?

Hello Kevv, I think something that you and your community could do is ride bikes or any vehicle that does not use fossil fuels to get around so it does not produce fossil fuels that affects our earth in a negative way. Riding a bike also can reduce traffic. Stacking  cars in traffic are bad for the environment, so less cars on the road means a healthier earth. Someone riding a bike can go 960 miles on the amount of energy that goes into moving a car 20 miles. This will help reduce your problem in your community.

https://www.umt.edu/transportation/bike … 20%20miles.

Today, there are approximately 700 million people living in cities. While cities are increasing economic growth globally, they consume 80% of global energy and are responsible for 70% of greenhouse gas emissions. Economic growth has caused millions of people to be lifted from poverty as well as caused an increase in rural-to-urban migration. This growth is generating vast amounts of waste and pollution and threatening cities' biodiversity. Cities leave a large carbon footprint that is threatening natural resources required to sustain economic growth and poverty alleviation rates. Currently, cities are struggling with environmental degradation, traffic congestion, urban infrastructure, and water and waste management. If cities don’t figure out a way to handle these problems, then the earth can become more polluted than it already is and lots of life and biodiversity will be lost. By 2050, it is estimated that 70% of the global population will be living in cities. Currently, cities are working to create sustainable consumption and production roadmaps for cities, along with upstream interventions to reduce and manage pollution and waste. But to create a major change in our ecosystem, cities must create sustainable transportation and buildings to lower the amount of greenhouse gases they are responsible for. As well as lower their carbon infrastructure and find nature-based solutions for sustainability. Many don’t realize how the planet they live on is slowly dying because of human activities, but there is still time to try and make a difference.

Sources: https://www.unep.org/regions/asia-and-p … ble-cities, https://www.thegef.org/what-we-do/topic … ble-cities

If composting scalable for cities and towns? At what point does transportation outweigh benefits of centralizing waste systems?

Composting might be scalable for cities or towns, but there are a lot of factors that depend on that. The city or town has to have enough space for composting, and there has to be a way to handle and use all of that compost after it is done composting. The compost could be used to fertilize a city farm or a local farm, they could transport the compost with trucks to the farms. So to answer you're question, yes i think it would be possible to compost  on a city level.

Have larger amounts of plants

In cities there is a severe lack of plants and areas such as parks so I think that it would be beyond valuable if more plants were to either be implemented on the buildings exterior or if they were to create more spots where plant life can thrive.

I agree, people are so focused on building new structures instead of repurposing run-down or abandoned sites. If we stopped destroying our plant life and hold off on creating new places our earth would be so much greener.

I completely agree. The community is so focused on making new buildings, putting in housing, constructing more roads/highways, etc, that they don’t include parks in that list. I believe that constructing community parks is crucial because it allows the community a chance to help out by planting things in gardens, enjoy the fresh air, and provide a gathering space for clubs, companies, etc., even in a gazebo. People disregard the outdoors because they are preoccupied with the interior world.

I agree as well. Adding more parks, trees, and plants to cities could have many benefits, many of which are already listed. By having more nature mixed in with cities, it would make the cities be much more friendly to the environment, as well as animals. It could definitely improve air quality, and it would overall make the city more balanced, eco friendly, and much more beautiful and inviting in general.

I completely agree with you! Having more plants in cities and towns can have a positive impact on the environment, such as reducing air pollution and providing habitat for wildlife. You are completely right about people shining more light on infrastructure rather than the plants and earth quality, but I think that even if people started taking action on planting more trees and other things of the sort, people may not stop littering. It’s important for individuals to take responsibility for their actions and dispose of waste properly to maintain a clean and healthy environment, before trying to make it better. Despite this challenge, I do believe that the benefits of having more plants in our communities outweigh the potential drawbacks.

Cannot store energy, costly to make, no energy at night, costs a lot of resources and makes a lot of pollution when creating solar panels, takes up lots of space.

ARE THEY EVEN WORTH IT WHY DO SO MANY PEOPLE LOVE THEM SO MUCH???

i do not get it. pls comment to tell me..

The environment is significantly assisted by solar panels. To create electricity you need to burn coal. There are many people who require electricity, not just one, and coal is a non-renewable resource on Earth. We need coal for many purposes, yet burning all that coal might make it vanish. A fantastic method to keep the coal would be to install solar panels. Solar panels cut back on harmful pollutants including sulfur oxides, nitrogen oxides, and pollutants as well as greenhouse gas emissions such as CO2. Despite the fact that they cost a lot to produce, unlike electricity, they are inexpensive to maintain.

Although it might be worth it for homeowners, but in places with tall apartment buildings like Taiwan, how are we supposed to install solar panels that can power the entire building?

Another question: are solar farms worth it? I've read that solar panels breaks after 10 ~ 15 years. It would be hard to maintain these farms.

They are actually already doing the solar panels on buildings thing in Alaska. They put it in the side of the building. Other places but it them all on the top of the building. It might be hard for it to get the power for the whole building but they get 250 to 400 watts per hour so it would last.

Yes solar farms are also worth it. They can be used to plant crops and other plants. I believe It’s called agrovoltaics.

Here is an example of the solar panel buildings that they are making.

I would call solar panels worth it. I think this because they produce lots of energy after they are built, and don't dump a lot of energy away, unlike coal plants that make energy but also warm up lots of air exiting the power plant.

I believe that solar panels are definitely worth it. It may be hard to put solar panels on top of buildings, but there are other places that solar panels could be built. In my states capital, there are solar panels on sides of highways. They are able to power most of the city!

Are cities currently more or less sustainable than rural areas? There are many factors that need to be considered in this question, and there may not be one deffinitive answer, however in thinking about how cities should look in the future, we need to figure out what exactly we need to change now. The basic idea and deffinition of a city is that many people would be living close together and in smaller areas. Condensing the areas that are inhabited by people leaves more space for wild life and the enviornment to flourish, this alone would reduce the impact humans have on the enviornment. However, cities are also  huge carbon emitters, and resorce dumps. Factories belch out smoke, trafic flows day and night, and neon signs blaze, blocking out the night sky. Where is the balence point? At what point does the benifits of leaving space for nature to flurish out weigh the pollution caused by cities. Is it possible to create a perfectly sustainable city, in wich the positives vastly outweigh the disastorous consequenses on the enviornment? The question we must ask is; “ how do we achieve this ideal city?”.

I believe that the United States should should either federally, or at the state level in act regulations which require the use of materials which decrease the need for energy consumption. These materials could range from triple pained glass, to the use of spray foam, and passive heating and cooling systems. Creating energy efficient homes is not a futuristic idea, highlighted through Colby Collages 10 years of carbon neutrality.

It's important that we less the use of fossil fuel for production of energy and we most use the green energy

I agree i think if a majority of humans can come together and take action this could definitely be an excellent way to to reduce the consumption of fossil fuel.

I think that if some major companies such as paper mills went away the global emissions for fossil fuels would go down by a lot.

I think local governments should enact different policies to reduce carbon emissions. For example, various state governments had planned to ban gasoline car sales by 2030. City governments should consider making public transportation more feasible, and should discourage acts which will harm to the environment.

Hello! I'm agree with you
if this kind of action is repeated everywhere the carbon footprint will be better on more reduced it will always be better

I also agree with you. I live off the coast of Maine and stores around here have also started banning plastic bags in grocery stores to help our environment. They replaced them with large brown paper bags. Little things like this can help decrease our carbon emissions but it’s going to take a lot more than that to really make a change/difference.

If i were a mayor for a city the first thing I would do is to stop making gas cars and encourage people to use electric cars

in large cities, the transport system can be modified, completely eliminating private vehicles and instead introducing a more effective and more networked public transport system

hi, I'm silvia, I agree with what Ahmed says, I also think the transport system could be changed, certainly not by totally eliminating private cars, because for example where I live it would not be possible to always move with public transport, but you should try to use your own cars as little as possible, using public transport when possible, or use the same car to go to the same places, such as to go to school, work or simply to go out to the same place.

Hello! I that private transport can be eliminated, but unfortunately where I live, in the mountains, it is not possible to reduce public transport (also because there are very few of them) there fore we are "forced" to use private buses. So there are no solutions? absolutely not, in Valle Camonica (Northern Italy) where I live, they are modifying the trains and using hydrogen, so that the few public they will be less polluting.

First of all, in my sustainable city I would make available the rental of cars, bicycles and motorcycles to reduce the circulation of vehicles on the roads and to reduce the pollution. I would also expand the public transport service with greener buses and trams.

In my sustainable city, first of all, I would expand public transport service, such as with buses that are greener and less polluting than trams. I would also make available to all citizens the main vehicles such as cars through carpooling, bicycles and scooters with bike sharing to circulate fewer vehicles in the city.

For a sustainable city, I think that cities should also be run by solar panels which convert sun energy into electric energy, and windmills. Those two are much better options instead of burning fossil fuels. There are also small things people can do at home like creating an at home garden, and like you said, public transport is also a big one.

I think to make a sustainable city, you have to make sure that everyone's needs are meet in one area so that the need for cars/transportation is low and when transportation is needed it is public transportation trains and buses or is walking and biking. I also think that having plenty of green spaces are super important because it will benefit peoples mental health and the city's carbon footprint.

To make a sustainable city, we need to reduce our carbon footprint and have a stable food source. One of the best solutions to this is to stop wasting food because it not only helps stabilize the food source but will actually reduce methane gases put into the atmosphere. Methane is produced when food is decomposing. Lets make our world a sustainable city and stop wasting food!

We should live in a world where we do not use plastic bags. We should also reuse, THEN recycle. Save water, save electricity. Live sustainable.

In Canada most restaurants and shops don't use plastic bags anymore. They mainly use paper or fabric bags now.
But I'm pretty sure in the U.S they still use plastic bags so I think they could invest in paper, fabric or whatever that is not harmful to the environment. If the world had no plastic bags then sea animals would benefit a lot from that because they die from plastic bags often. But anywhere in the world where they still give out plastic bags, they should definitely take action and eliminate plastic bags.

To make a sustainable city we need to come together and ensure that people have asceses to a sustainable income, a safe place to go home to after school/work, a good transit system, places where you can get mental health support, parks and gardens, and alternative things to fossil fuel (such as solar panels, eclectic cars, windmills etc.). To me all of these things are what a sustainable city would look like, and I hope we can all work towards accomplishing that goal.

I think a way to make a sustainable city is to make a way to stop a lot of cars from driving all the time to and from anywhere they want to go. Instead what we should do is make almost like many different train stations around the city that goes to a checkpoint or place that is close to many popular places. They could also make a way for students to be able to come home safely also with some sort of transit that doesn't take a lot of Co2. We can also find other alternatives to making electricity. Some of the ways we can make electricity is by solar panels, windmills or other items that don't take fossil fuels.

I think a way to make a sustainable city is to make a way to stop a lot of cars from driving all the time to and from anywhere they want to go. Instead what we should do is make almost like many different train stations around the city that goes to a checkpoint or place that is close to many popular places. They could also make a way for students to be able to come home safely also with some sort of transit that doesn't take a lot of Co2. We can also find other alternatives to making electricity. Some of the ways we can make electricity is by solar panels, windmills or other items that don't take fossil fuels.

i feel like to really get our carbon emmissions down, cities should invest in public transit, whether that means subways, or buses because a bunch of people having their own little cars will have an exponentially bigger carbon footprint than a bunch of people on a bus or a train. it would also be great if there were long distance rails between cities, especially here in canada, as it would cut down on gas being used by people going on road trips. not to mention that we could get rid of big busy roads and have parks and places for pedestrians to walk, making a safer city for everyone.

not to mention the fact that subways usually run on electricity (cutting down on fossil fuels) but also that public transit makes it easy for everyone to get around, and its way cheaper than owning a car. so not only would we be able to have sustainable methods of getting around, but also methods of transportation that would be open to everyone, regardless of wealth.

Should some cities like new york or tokyo begin using solar panels on skyscrapers to get energy in a cleaner way?

100%! i feel all city's should become run by solar panels. But this is a task that will not be easy and will take billions upon billions dollars to do. But there is hope there is to ways i see we could make this happen one by putting in place a solar energy tax. Or one that is more achieveble with something Elon Musk created called solar city. with this all it would take is a couple big companies to make the solar city's and then we can run our entire planet on solar energy.

if i where to make a city some thing i would do to make it green. first i would make it so everyone could use public transport to have less cars. second i would ban gas lawn mowers and only have push mowers, so cutting gras would no longer produce co2. lastly i would put a green space in any empty spot. wether it was an unused ally way or a empty patch of land.

I agree but I would also focus on converting to a mainly solar powered city with wind power backups as they are both very efficient for power use. Though for the grass I would transition out of  grass lawns as they perpetuate a monoculture of plants. Instead I would try to encourage native plants to grow in its place and specifically plant matter that could cater to native pollinators. I completely agree with you for greenspaces but instead of putting them in empty spots as a second thought they could take main stage of the city, combining the city's architecture with plants would provide a better air quality.

if i where to make a city some thing i would do to make it green. first i would make it so everyone could use public transport to have less cars. second i would ban gas lawn mowers and only have push mowers, so cutting gras would no longer produce co2. lastly i would put a green space in any empty spot. wether it was an unused ally way or a empty patch of land.

What can we do to create sustainable city? I think we can increase public transport, we can dissiminate initiatives like carpooling: sharing of car trips or bike sharing: sharing bicycles can make the difference. The challenge is to create a sistem of sustainable transportation for example in my region we will change old trains with Idrogen ones.

The city would be filled with public-accessible bikes. Transportation contributes significantly to pollution, so it is best to try to solve this issue. Electric cars would be less expensive than other types of vehicles. The greenhouse gas emissions associated with an electric vehicle are typically lower than those associated with a typical gasoline-powered vehicle over its lifetime. The presence of many trees and plants in the city would provide a fresh and lively atmosphere. This would increase the amount of oxygen and decrease the amount of storm water runoff, reducing erosion and pollution in the waterways and possibly reducing the effects of flooding.

I'm really happy to see how my small village is changing. We have placed dispositives for electric charging, since many people are changing their cars, is something new in the small reality where I live. Many houses have put solar panels on their roofs and more people now prefer clean energy.

According to the EPA (Environmental Protection Agency)
- As of 2020,
* Electricity makes up for 25% of greenhouse gases
* Transportation is 27%
By cutting down on these, we would be dealing with approximately 50% of the greenhouse gas emissions.

For electricity, we burn energy through things such as heating, ventilation, appliances, air conditioning and lighting. By switching away from fossil fuels and moving to cleaner energies, we would significantly cut down on fossil fuel emissions.

For transportation, a way that we could cut down on emitting fossil fuels is through electric cars and other public transportation vehicles. Using gas through regular means is through burning coal. Coal emits lots of CO2 (54% out of all of the total CO2 emissions to be exact). Another idea is to encourage the use of electric cars and creating more charging ports scattered throughout the city.
Using energies such as solar, hydroelectric, nuclear, and wind are all non emitting, so all of those would be an option for cutting down on emissions.

Author n/a, Updated April 14th, 2022, "Sources of Greenhouse Gas Emissions" Environmental Protection Agency (EPA), https://www.epa.gov/ghgemissions/source … equivalent.

I agree with you if we get rid of these two aspect of the greenhouse gas emissions in a country which like you said it would be about 50% less greenhouse gas half of our problem is solved right there. We can then later try and solve for the other 50 percent.

I really agree with your idea to reduce the greenhouse gas emissions by generating electricity not using fossil fuel.
And talking about the CO2 emissions in transportation, I also agree with the idea using electric cars. I also think that we can design some airplanes that use hydrogen as fuel instead of oil. Burning hydrogen will produce water vapor as waste and does not heat up the atmosphere.

A big factor that is contributing to the growing global carbon emissions is transportation, or more specifically transportation including vehicles. Vehicles, specifically cars, are the #1 transportation method in the United States, with over 76% of Americans reporting cars as their way of commuting from home to work on the daily.

This is a growing problem because majority of cars, like stated above, utilize fossil fuels and generate a lot of carbon emissions. One solution to decreasing the high rate of car usage is to make more walkable cities. In America, there seems to be a problem with prioritizing automobiles while city planning. The consequences of this is seeing little to no sidewalks, not having crossable streets, limited public transportation, etc. I believe that if we make a change with our city infrastructure, and prioritize pedestrians, more people will start walking or biking instead of using cars.

Walkable cities can help decrease car usage, but only in said cities. The United States land wise mainly consists of rural areas, where walking to work could take hours. Automobiles are normally prioritized in the US due to cars being the best current solution we have to transporting citizens, as opposed to European countries which have the ability to build large public transit due to a smaller size.

It is a good idea to turn off water while doing small things like brushing your teeth, or cleaning dishes, because this uses a lot more water than needed. Things that take a lot of water can be things like watering plants, or washing cars. Ways you can solve this are by making irrigation systems, or using a single bucket of water to clean a car.

there are indeed many ways we waste water while not even noticing it and doing little things can save a lot of water.
triniti tikoi

A modern country with the lowest possible usage of the carbon footprint would be one that gets it power all from the sunlight. For example every home would have solar panels that would capture the sunlight energy for later usage like light and other stuff. Another elimination would be the usage of gasoline and electricity this would be replace by boats and buses and cars that are run by solar energy. The main source of energy would be Sunlight this can be expensive but really effectful when trying to reduce Co2

Though solar Panels are good way to lower Co2 emissions they are still expensive and hard to maintain for many people. Solar panels can be quite expensive and things like electric cars are not cheap either. There is also the fact that solar panels only work at night so the individual must be in possession of some of battery which would also expensive which is to be expected. Ways to fix these issues would be to create tax reductions on fully Solar or no C02 emitting power sources and by trying to make non C02 appliances more cost friendly.

In most cities, or in many places in the United States, There are buses, subway systems, taxis, Lyfts/Ubers, and other forms of transportation services. You can also use your car, your bike, your skateboard, or walk.  But everytime you use a bus, car, or other form of motor-based transportation, you might be releasing harmful smog and gas pollution. In order to fix these harmful practices, there needs to be better options for transportation that help decrease this pollution. For example, the use of buses that use renewable energy. Using a rechargable battery for buses can decrease the amount of pollution caused by buses. In California, school buses that are electric are being implemented in some school districts. On a state or country level, there could be separate funding that supports or encourages the production of non-fuel based vehicles. On a personal level, you can opt for transportation that requires no type of gas or fuel. For example, using your bike or walking for going to close by places, is a small and simple way to decrease the amount of pollution your vehicle releases by relying on it less. If you are going long distance, you can opt for buses that use eco-fuel or are electric, also decreasing the amount of pollution your vehicle releases.

What eco-friendly methods could we use to get rid of the huge landfills around the world? Would this cost more money than non eco-friendly methods?

San Francisco’s greenhouse gas emissions reduction targets follow a schedule, [in aim to reduce their carbon footprint and fulfill their initiative of achieving long-term sustainability of Sf’s built and natural environment. City-wide and neighborhood-scale efforts revolving around classic and widely-acknowledged environmentally sustainable categories which address: “climate protection, energy, water, waste and materials, air quality, ecology, and resilience.”

...So far their reduction targets have been attainable based on their ongoing success with being able to reach specific targeted measures, and the schedule is shown accordingly below:
25% reduction from 1990 emissions by 2017, 40% of emissions by 2025, and 80% by 2050.

With the introduction of newer and more enhanced technologies for more efficient and smart usage, the city has shifted and indeed altered the way service is delivered, the quality of life is ensured, and the approach to the overall reduction of carbon emissions and footprint, the city has implemented to ensure more years are added to Earth’s existence in the solar system in combating climate change.

The city continues to dedicate its service to this initiative of a sustainable city by embedding a comprehensive sustainability lens across the vast of its initiatives, in support and advocacy of maximizing co-benefits and regulations. 40% of SF's overall CO2 emissions come from cars and trucks. With this being said, San Francisco has adopted an ambitious action plan to outline its goals and pursuits to lower its carbon footprint. Creating these policies and providing an outline is a great start in the right direction. Clearly now, people have the opportunity to resort to and support legislation in efforts to keep us in the right direction for the long run. This topic of 'sustainable city' is just an initiative that San Francisco and many other cities around the globe have dedicated themselves to further investing in the generations after them to direct them in the right (cleaner and healthier) direction.

What has your city, county, or even country, done to implement green initiatives in order to combat climate change?

My apologies for the confusion. Please respond to the post above instead of this one. Written by the same person but under two different accounts. Thank you!

SUSTAINABLE CITY - SF PLANNING
San Francisco’s greenhouse gas emissions reduction targets follow a schedule, [in aim to reduce their carbon footprint and fulfill their initiative of achieving long-term sustainability of Sf’s built and natural environment. City-wide and neighborhood-scale efforts revolving around classic and widely-acknowledged environmentally sustainable categories which address: “climate protection, energy, water, waste and materials, air quality, ecology, and resilience.”

...So far their reduction targets have been attainable based on their ongoing success with being able to reach specific targeted measures, and the schedule is shown accordingly below:
25% reduction from 1990 emissions by 2017, 40% of emissions by 2025, and 80% by 2050.

With the introduction of newer and more enhanced technologies for more efficient and smart usage, the city has shifted and indeed altered the way service is delivered, the quality of life is ensured, and the approach to the overall reduction of carbon emissions and footprint, the city has implemented to ensure more years are added to Earth’s existence in the solar system in combating climate change.

The city continues to dedicate its service to this initiative of a sustainable city by embedding a comprehensive sustainability lens across the vast of its initiatives, in support and advocacy of maximizing co-benefits and regulations. 40% of SF's overall CO2 emissions come from cars and trucks. With this being said, San Francisco has adopted an ambitious action plan to outline its goals and pursuits to lower its carbon footprint. Creating these policies and providing an outline is a great start in the right direction. Clearly now, people have the opportunity to resort to and support legislation in efforts to keep us in the right direction for the long run. This topic of 'sustainable city' is just an initiative that San Francisco and many other cities around the globe have dedicated themselves to further investing in the generations after them to direct them in the right (cleaner and healthier) direction.

What has your city, county, or even country, done to implement green initiatives in order to combat climate change?

Lawns and monoculture are super unsustainable and hurt both the land they sit on and the ecosystems they take space from. So much more food could be produced too, if we used lawn space better and used better crop rotations to maximize farm health and variety. Before the industrial revolution, over 50% of food was personally produced, but lawn culture hurts that opportunity.

I agree that Monoculture is very destructive because of what happened in countries in Central America and central Asia. In Central America during the early 20th century, the banana companies who got their bananas from here had a heavy influence on the government to the point of almost controlling them. They used that power to continue to grow bananas which hurt local farmers and the environment. While in Central Asia in the late 20th century, the soviets used the land there to grow huge amounts of cotton. They eventually rerouted water to these fertile lands which caused the drying up of the Aral sea.

The city could have solar panals on every roof, and anywhere else applicable.Electric bikes and buses would be everywhere, and reletively cheap to use. Only electric cars would be allowed, and the recycling programs would be very advanced. Factories would be required to have low emissions, and there would be many plants on all of the buildings. All schools would teach the importance of having a low impact on the environment, and many animals would be trained to live safely in the city.

Absolutely, and the entire road system needs to be overhauled to allow people to exist comfortably without cars, and food production needs to avoid monoculture, because it sucks.

-Ethan K

Car Dependant Infrastructure in the United States and Canada are awful for CO2 emissions, and are SUPER classist. It is often necessary to use a vehicle to get anywhere in North America, and because bicycling is extremely dangerous, and public transport infrastructure has been completely gutted basically everywhere, the only way to consistently and safely get anywhere is with a car, which is extremely expensive. There is also a classist social stigma behind public transport, where if you aren’t in a car, you must be one of the poors. Our road systems are awful, too. I don’t have any real protection biking to school, besides some painted lines, and it’s almost impossible to get anywhere outside of a vehicle (and urban California is relatively utopian), and going to stores to get food and other essentials is awful and unsafe outside a vehicle, so poor people just have to go through hell to get essentials. Everything about North American stroads (an awful mix of roads and streets, which accomplishes the purpose of neither) is built to hurt anyone outside of cars, and cars hurt the environment and people outside of cars, and car-dependance hurts social connection and community buiding (because you need to go through driving a car to interact with people, and it’s unlikely you live close enough to someone to not drive to them, because houses are so far apart because of suburbanization, and because nobody is able to intact outside because everywhere is ugly and unpleasant, because of cars and stroads), anyone outside a car, and the environment again, because parking lots take up space and it’ll take a ton of time and destructive work to fix that in the future!

In addition to helping the environment, urban agriculture can also improve community members' health and well-being. The establishment of community gardens may be able to lessen the effects of food deserts in low-income communities and give locals more access to nutrient-dense foods that are essential for maintaining a healthy lifestyle. Urban regions' difficulties can be partially alleviated through community gardens. By making more wholesome foods more accessible, fostering stronger community bonds, lowering environmental risks, cutting down on food miles, and developing a more sustainable system, they can be a useful addition to many communities. By encouraging sustainable agriculture, lowering the cost of transporting food, and minimizing water runoff, community gardens can aid in lessening adverse environmental effects. There can also be community cooking classes in which people can be taught how to use their produce to make delicious food!

Community gardens:

-Help improve air and soil quality
-Increase biodiversity of plants and animals
-Reduce carbon emissions caused by the transport of food
-Can replace impervious structures and improve water infiltration
-Can reduce neighborhood waste through composting

In the US, some are trying to implement efficient energy but I believe that we should increase the amounts of efficient energy and cut back on our use of inefficient energy. If we increase the amount of solar in cities it will make cities more sustainable. We should make it required for citizens to compost their waste. This small change could make a large impact on the environment.

I think a major contributor to climate change is the amount of traffic in cities, and how in a lot of places it feels like a car is required to be able to go anywhere. A factor contributing to that is how little cities do to make transportation methods like biking accessible and safe. There are a lot of roads where there is not a bike lane and there is barely any space provided for bikes. At best, a bike has to use the side of the road, which is very narrow and usually contains garbage bins, parked cars, and other obstructions, and at worst there is no room for a bike on the road, and bikers have to use the unpaved terrain just off of the road to avoid getting hit by a car. I personally have biked on some roads where I had to use unpaved and uneven terrain on the side of the road and not only is it inconvenient, it is not safe at all and heavily discourages biking, which is one of the most efficient carbon neutral transportation methods.

More and more vehicles are going electric and now I think the biggest change that needs to happen with this is how expensive they are. If they were reasonable prices, more people could afford them, and I think that would help to lower the carbon levels in the air. Also, if you don't necessarily need to take bus or a car, then don't. If you can help, then do it!

I totally agree with the point that we could all do a bit extra in the factor of contributing to lower the carbon levels but it's hard when not everyone can afford the cost. Biking places and even walking to get exercise could be better.

I agree on biking, not only does a bike last for a pretty long time, it also keeps you in shape and reduces carbon levels.

I’m not very excited about electric cars becoming more popular, they’re not as reliable or accessible as a normal diesel car for example(even though the diesel produces a toooon of waste).

And also, CO2 emission for making one of these batteries is absolutely shocking. For example, a very popular electric car that you guys have probably seen since you live in America is the Tesla, made by Elon Musk. To make a lithium-ion battery for these cars to run on their “sustainable and totally non-polluting energy” the CO2 emissions are anywhere from 3120kg(about 3 tons) to 15.680 kg (about 16 tons)

For reference, after completing the survey, my carbon footprint is about 3.307kg per year. It would take me about 4,7 years to produce as much CO2, I would already be going to college by that age!!

It is absolutely terrifying to me

Hi. Here are the few materials that I have found that could be useful in future sustainable building. Please comment and reply if you have any ideas or suggestions about the materials.

1. Hempcrete - A sturdy and energy efficient material, could be a replacement for concrete, which costs a lot of gravel and stone to create. Hempcrete is very durable and lasts hundreds of years.

2. Bamboo - As one of the fastest growing woods used in construction, bamboo can be harvested in 1 ~ 5 years. It would serve as a great replacement for wood and cutting down trees.

3. Cork - Giant cork blocks provide as a significant material for building. Easy to produce, light, durable, and reusable.

4. Steel - A very recyclable yet extremely durable, commonly used in foundations and support beams, steel can be recycled indefinitely without losing quality, which makes it a extraordinary sustainable building material.
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[/img]

whoops. what is wrong with the last image?

ill put another image of an example of a steel building here...

Another eco-friendly material that you could add to the list is straw bale. After the seeds have been extracted from grain harvests, the stalks are what are used to make straw. Straw may be used as mulch, animal bedding, food for livestock, and as part of a compost pile. This may seem like a weak material to build things, but when there's a lot of this straw stuck together it can make a building. It's dried out and it works well to build things.

Here is another eco-friendly material that can be used to build sustainable and eco-friendly homes. This eco-friendly material is sheep wool. Sheep wool can be used to cover the tops walls, side walls, and windows during cold seasons, instead of using heaters. Room heating and cooling accounts for 38% of family housing's greenhouse gas emissions in the US. Even though using heaters does not create pollution itself, the electricity used to make the heaters work does cause pollution. The coal (fossil fuel) is burned which sends harmful gases such as nitrogen oxides (NOx) and carbon dioxide (CO2). here is an example of a house covered in sheep wool.

Problems:

- Wind Turbines = Loud, no one wants to live near them.
- Solar Panels = Cannot store energy = No energy at night
- Hydropower = Limited energy, only works on dams
- Eco-Friendly Materials = Expensive, hard to acquire

Question: Can we replace all houses with sustainable houses?

pls comment ways to solve the problems / suggest more problems we have to solve about sustainable cities

Windows facing the Sun should be coated with solar films in order to generate electricity.

Hi Ray, if we continue not use that much solar panels, it will soon die out!

creating solar panels cost a LOT of energy

Solar panels are really expensive!

Solar panels are expensive but their maintenance cost is lower than electricity. Solar panels cut back on harmful pollutants including sulfur oxides, nitrogen oxides, and pollutants as well as greenhouse gas emissions like CO2. And what some people do is that in the day they use the sunlight instead of using the solar panels. Then, when it starts to get dark the solar panels have already stored their energy from the day and they can use it at night. I have solar panel lights in the balcony in my house and that's what they do.

sorry. one of the problems i listed in the solar panels part, is wrong

turns out solar panels can store energy now.

sorry

When people are building wind turbines they usually build them in distant places where people don't usually live. They build them in areas like grasslands, places near the ocean, and mountains. Offshore wind turbines can contribute to the development of habitats for fish (turbine reefs) and other marine species.

WIND TURBINE IS EXPENSIVE. It is 4000 dollars to 8000 dollars per rated kilowatt.

I found out that there is something called concentrating solar thermal power. People build mirrors around a receiver and those mirrors reflect sunlight to the receiver to create heat and then into electricity. These things don't use direct sunlight so they can store energy when there is no sunlight or very little sunlight while regular solar panels can't. Still, people choose regular solar panels because they are cheaper.

Can you guys pls help me solve this problem:
What is the most efficient way of saving energy?

I think it is using electrical cars and changing food as in my carbon footprint, most come from my food.

hey there. if u ask me, electric cars don’t have sucha big difference. as my family also own an electric car, the energy efficiency, is not as good as u might think. 1 kilowatt can get u about 6 km…

besides, we also make pollution while generating electricity.

true thing about the food, pork and beef are surprisingly bad for the environment…

I think driving electrical cars or walk to somewhere, turning off the water when you are not using it, turning off the light when you are not using it, and eat more vegetables will be the most efficient way of saving energy. Then we can reduce carbon footprint.

To save energy, you can ride a bike to school or use solar panels to not use coal. You can use roof top solar panels or window coated solar panels if your window has a lot of sunlight all the time.

I don't think electric cars makes a big difference for less pollution. Since Taiwan's electricity have only less than 10% created by renewable energy. That means you just make those pollution from Taipei to Taichung where most of the thermal power plants are.

Would using sustainable materials like hempcrete and cork to build houses reduce carbon footprint?

Sadly, sustainable housing is expensive so not a lot of ppl wanna build them...

I think hempcrete would help since it looks pretty eco-friendly. "Lasts 100's of Years" and "Energy Efficient" definitely be a lot of help. Could you use the cork to make bottles instead of plastic bottles though? Maybe that would help...

I definitely agree with using sustainable materials.
But, a cheaper version you could use wood. But, in Japan people cut down old trees, since they absorb less CO2, and if they stay there it is not good for the environment. But remmeber to plant a tree back!

Using the wood of trees would be much cheaper but the tree would take half a century to fully grow. Yess, planting a tree would be a good idea but they could be overused and it’d take a lot of time for them to grow.

me to

isn't hemp a drug?

nevermind its marijuana

Using bamboo could be a great replacement for trees. It takes less than half the time to grow, and less animals use bamboo forests as a habitat compared to the vast amount of ecosystems destroyed when cutting down a forest.

And to answer your question about cork, cork is a very cheap and energy efficient material for used for building. (and wine stoppers) People can build with large blocks of compacted cork.

Here, I attached a picture of a house made mostly of straw and cork.

yeah but its made for building not a drug!!!

im bamboo

bamboo is a very efficient building material.

im not sure if hemp is a drug but hempCRETE is basically concrete but more energy efficient.

My city would have everything very close together so you can walk and bike instead of driving or other transportation. We would also entirely use wind, solar and hydro power to reduce the carbon emissions.

I think cities that have stores, etc. closer together would be able to start using bikes and walking more, because they can get to places they need to go easier. In the suburbs, or further outside cities, it would be harder for people to not use cars, so I think they would produce more CO2 emissions.

Cities could alter the way things are built to be closer meaning more places in walking or biking distance to prevent carbon emissions from everybody using cars, along with supplying areas to bike and places to rent bikes.

Wind turbines are extremely loud so no one wants to live near them, that's why they build em' in the oceans. The problem with solar energy is that you can't store the energy that it produces, meaning that if you run a house fully on solar panels, you would have zero energy at night.

How many people per city are using solar panels? How much of their total energy do they actually produce?

we should have more solar panels on our houses and building we also should have smog eating buildings

A sustainable city would be great. Everything would be electric and powered by the sun. All food would be organic.

Is taking public transportation better than driving? The short answer is yes. Taking public transportation reduces your carbon footprint more than small actions like adjusting the thermostat.
Here are the benefits:
1. By taking public transportation, you are supporting local organizations. You are giving your money to people that help your community rather than car companies who don't care about you or your loved ones.
2. You can multitask and get work done while on a public bus, for example.
3. You don't have to worry about hitting someone or getting in a car crash.
Overall, you should definitely start taking public transportation more. It is really easy to implement into your routine and daily schedule and it is the more sustainable option.

https://www.kcata.org/about_kcata/entri … nvironment.

As a community it is very important that we all work together to reduce and maintain a sustainable carbon footprint in our city. Our average carbon footprint as a city is important because we want to contribute as least as possible to climate change. There are many things we can do to reduce our numbers. First, many people may not realize but a lot of people leave lights on in the house when they are not being used, so we can start by not using electricity in the house when it is not necessary. Also we should begin to take into consideration on how much we travel by plane and car because that plays a major role in the increase of our carbon footprint. Lastly we should start to think about the health of our city and earth which will make us more conscious of our action.

No matter where we come from or how we were raised, we all live on earth. and because we all live on this planet, it is our job to care for it because it provides for us. In the 21st century, we use cars, buy fast fashion, use plastic bottles etc. many people try to live a more sustainable life, which is amazing. But to truly make a difference, we need to be sustainable as a community. For example, there are many companies such as Shein, Forever 21, Romwe, and H&M, that promote fast fashion. Fast fashion is a dangerous concept. Because trends change quickly meaning that when people are done wearing their trendy clothes they just throw them away. Instead of shopping at stores and companies that offer clothes one will only use for a short period of time, we can invest in small businesses and secondhand stores, as we would be reusing materials. Another example is transportation. cars use up a lot of natural materials that are very valuable. Each year a typical driver emmits about 4.6 metric tons of carbon dioxide per year. (www.epa.gov). Carbon dioxide is one of the main greenhouse gasses which traps heat into the earth's atmosphere, which we know is why climate change has appeared. In 2022 there will be over 7 billion people on earth (www.census.gov).  excluding children and people without drivers licenses, that is still many people emitting carbon dioxide into the planet's atmosphere. To make the world more sustainable, nations can assign certain days of the week where people take public transportation or ride bikes to work or school. Although this may not be the more convenient option rather than driving a car, saving the planet is the most ideal option in my opinion. Like I had mentioned before, it is good that many people are beginning to be more sustainable with their actions. But to make a large difference, we need to come together as a community to make a change that will last. This means reducing our carbon footprint by consuming less fast fashion, using less plastic, using public transport, investing in solar panels, composting, and much more. We can make a change,  but we need to work together.

A common misunderstanding in the science community is that global warming and climate change are the same.  According to NASA, the term "global warming" refers to the long-term heating of Earth's climate system.  This is greatly caused by humans' actions of burning fossil fuels.  Climate change, on the other hand, is a long-term change in Earth's weather patterns.  To end up reaching the goal of having a sustainable city, it must be understood by the members of the community the differences in these terms and how they relate to each other.  While electric cars have made a name in the automobile industry, the manufacturers of these cars aren't especially good at making them affordable for all citizens.  One way to reduce carbon footprints around the city and make it a more sustainable environment is to make all public transportation methods electric and affordable.  Making them electric is just one thing, but making them affordable will draw a larger amount of people, making them more susceptible to being able to participate.  For example, when spending a week in San Francisco, it was easy to hop on a trolley train (no gas required) and get to my desired location within walking distance in the city.  Being such a big city like San Francisco, without this method of transportation I would expect their carbon footprint to be even higher!  In addition, according to the NASA Global Climate Change, just last year on February 25th, the UN Launched an Earth Observation Toolkit for Sustainable Cities and Human Development.  For citizens to see such a big organization such as the UN take on this role, it might inspire some to take a closer look at what they can do to help their city.  By more members getting involved and being aware of this cause, it will ultimately help the city be more environmentally friendly.  Getting started by involving yourself in these topics may benefit your community by spreading the word and creating a cause that will last a lifetime.  It just takes one person to start!

https://climate.nasa.gov/resources/glob … te-change/
https://appliedsciences.nasa.gov/our-im … ettlements

“Mass production of plastics, which began just six decades ago, has accelerated so rapidly that it has created 8.3 billion metric tons—most of it in disposable products that end up as trash.” 

A lot of stores and companies use single-use plastics which can only be used once before being thrown away. They are used because they are cheap, but they create a lot of waste. Companies for the most part do whatever makes/saves them the most money. If we ban single use plastics companies will have no choice but to stop using them.

According to national geographic, 91% of the world's plastic isn’t recycled. “Of the 8.3 billion metric tons that has been produced, 6.3 billion metric tons has become plastic waste.” (That's roughly 76% of all the world's plastic.) “Of that, only nine percent has been recycled.” 79% of the plastic that isn’t recycled ends up in the landfill or as litter. At some point most of the plastic goes into the ocean. Of course some of the plastic that ends up in the landfill is reusable, but if we ban single use plastics, we will be able to cut down on most of our plastic waste.

https://www.nationalgeographic.com/scie … nvironment

I agree. Although banning single use plastics all over the world would be a great challenge, encouraging companies to utilize reusable packaging would be a great way to create positive change.

I say an alternative to just banning single use plastic world wide (that would be a challenge) i say we take baby steps into shipping products with no plastic, slowly making products without the plastic and inside make it with something reusable or bio-degradable.

Single use plastics are found everywhere. Weather they are in stores or on the side of the road, they are not good. We need to be cautious of plastics and if we use them we have to dispose of them properly.

I agree that single-use plastics only are useful to us once, and then cause more trouble than good after we throw them away. It’s already clear that animals and habitats all over the world are being affected, and if we continue to create and use so many single-use plastics the problem is only going to get worse. If it’s too difficult to eliminate plastic altogether then it would at least be better to use more plastic that is recyclable, and set up more infrastructure to be able to actually recycle most or all of it, as the majority of plastic used today is not recycled because it’s expensive and easier to just throw in the landfill than recycle it.

Hi, in France we have a law which fordbid the single-use plastic gradualy. Straws, plates and tumblers are concerned. The goal is to substitute the plastic by recycle cardboard.

Hi, in France we have a law which fordbids the single-use plastic gradualy. Straws, plates and cups are concerned. The goal is to substitute plastic by recycled and recyclable cardboard.

I agree that substituting single-use plastics with other resources is beneficial and a good step towards sustainability, however depending on the manufacturer and shipping method, the production of cardboard still can produce large carbon emissions damaging the atmosphere of not only cities but the entire world. I think using reusable utensils can be the most beneficial, however recyclable materials are still a better option for take-out or shopping bags when you forget than plastic.

I think that, to improve our planet, we should focus on cities.
In fact, they are one of the main sources of pollution.
So we should start limiting all sources of pollution that we can.

This is a wonderful point. In a search I made, I discovered further information on cities especially transportation in large citys, including the statistic that transportation accounts for roughly 30% of worldwide carbon emissions. Up to 70% of these pollutants are produced solely by automobiles. Many of the responses suggested that instead of driving, people bike or walk to their destinations. Although these solutions may be feasible over short distances and in some conditions, not everyone will be able to totally eliminate automobiles from their lives. As a result, it's critical to acknowledge that there are other strategies to minimize transportation-related emissions. Carpooling, taking public transportation, or investing in an electric or hybrid automobile, if you can afford it, are some of these options.

I think that one step that cities could take, while it is a big step, is to to convert trains to electric trains and make them more accessible to the public so there aren’t too many trains and people won’t really need to take personal transportation because trains can take them there while reducing the carbon footprint

Trains also can carry many people which would help with traffic in bigger city’s. As well as other public transportation.

Bullet trains are a technology that was invented in Japan during the 60s, and is a very viable solution to being more energy and time efficient.

A few facts about bullet trains:

-Facilitates cross-city economic integration and promotes the growth of smaller cities by connecting them with larger cities
-Reduces smog
-High speed trains could reverse the current tendency for cities to sprawl as wide as they can, with lots of new growth on the fringes and a neglected city center. A high speed rail network could revitalize America’s ‘Main Streets’.
-Less traffic
-Much safer than driving
-Run on electricity

A walking city is a type of city that is created to avoid internal transportation,
and therefore be small enough that a person can use walking to navigate the city.
It is characterized by narrow, often winding streets. If we could repurpose our cities
infrastructures around walking instead of driving in cars, we could see several benefits.

-Helps you stay active throughout busy days
-Allows social equality because everyone is a Pedestrian
-Reduces the environmental footprint caused by personal vehicles
-It favors the local economy and local business
-The smaller the community the bigger difference you make
-Save on transportation costs

In my city we would have a whole network of above and below ground electric trains around the city. This is because one major part of my carbon footprint was from transportation both from air travel and car travel. Although I do not travel very far within my community, I do travel to those close places very frequently like school. You could charge a small fee to get on the train to help pay for the expenses too, similar to the purpose of tollbooths. Electric Trains could make a profit for the city while also reducing everyone’s overall carbon emissions.

Vehicles such as cars and motorcycles are a significant contributor to the amount of greenhouse gases in the atmosphere. However, solutions are already being presented to change this. One of those solutions is electric cars, which produce far less CO2 emissions than regular cars. Unfortunately, electric cars are still not very common, and one of the reasons for this is that these cars need to use charging stations in order to recharge. These charging stations are not very common, and one step towards building a sustainable city is making these charging stations more widely available, as this will likely increase the popularity of electric cars.

I agree 100% with you.

I agree with your ideas. I think that your ideas are very good and will definitely help deal with the world's carbon problem.

I think this is something that would help the environment a lot. I think we should make the charging faster for electric cars and have more charging stations available.

I think the main issue we have with electric car charging stations is not the amount we have in urban areas but rather the suburban/rural charging network. Looking at maps of chargers in the US I can see that the big and small cities have plenty of chargers. Places like Maine and other small-population states have very weak networks. There is barely any way for someone to travel around the state of Maine on electric charge effectively. Many of the chargers that do exist in Maine are level 2 which also detract from the overall appeal of an electric vehicle.

Yes CharlieC, I completely agree. As a resident of a low-population state with an electric car I can confidently say that the infrastructure for wide-spread electric car use just does’t exist yet. Even with an electric car that we can charge at home, we still have to take our gas-powered vehicle on long trips out of state because there just aren’t enough chargers. In order for electric car use to be a practical carbon reducing solution everywhere, more and faster charging infrastructure has to be implemented. However, I am confident that this will happen eventually, because transportation is one of the most carbon emitting systems and improving this will be crucial.

I believe that many of these points are true, but that electric vehicles shouldn’t be a long term solution. Electric vehicles are still individual vehicles that require energy to be run, which comes from plants that often don’t implement green strategies. They are better than gas, but even making them using lithium that is mined. Mining is not only bad for the environment, it is often done in humanely. I think that though electric vehicles are amazing and should be used over gas vehicles, they should be used with the end goal of more accessible public transportation.

I think green cities are one of the most important things we can do for environmental of our planet because the cities pollute a lot, we breathe the air of the cities and if the air is unhealthy we could have serious problems, for example at out respiratory system.
So i think green cities could be a fundamental object for a green planet.

Allowing more plants to grow on buildings, like vines and such would be a great idea for getting more greening in cities. We can’t get rid of cities so why not advance them.

I agree.  So much of cities in concrete and cement.  Not only does it feel like eye pollution, but just imagine the habitats that thrived there before.  If we just allow more plants, mini forests and gardens to be made for the small sacrifice of a couple apartment building, we could see better air qualities and a more natural beauty withen our cities.

One of the main producers of carbon in the atmosphere are vehicles like cars, tractors, motorcycles, and even buses. Vehicles like these release about 4.5 metric tons of carbon dioxide into the atmosphere per year. So, one thing that I would do to reduce the amount of carbon in the atmosphere would be to replace vehicles with electric vehicles since electric vehicles use electricity to run instead of gas or fuel. Charging stations would also need to be installed in more places for electric vehicles to recharge.

I agree

I agree with you, but there a lot of cars that use fuel and it is impossible to change every car in the world because there are some poor countries that haven't got enough electricity to load their car. There is olso a problem connected to planes that pollute a lot. Electric cars would surely improve the environmental issue, but in my opinion the road is still long.

I agree

I would most definitely agree that gas powered vehicles are some of the biggest fossil fuel contributors and electric vehicles are the future. I think we have already come a long way in terms of finding ways to make more electric vehicles but I also understand that the US has this financial ability and resources whereas other countries will suffer with this. I have a lot of hope for the future of electric vehicles. We have a long way to go but I think we are on the right track.

I think that one big step towards a sustainable city and reducing our carbon footprint for a healthier environment is by converting to electric cars.I think this step is a keystone towards a more sustainable city.Especially considering how much carbon they put of into our world.

yes i agree because to have a sustainable city we need a lot of resources and we need to have more carbom

I agree with you, Grant, cars have a very big impact on the environment. Another idea for a green city could be planting a lot of plants to decrease carbon dioxide level.

I think the same.
we have to reduce our carbon footprint and we also have to change maybe using the electric car.
In my personal opinion, we have to start now, we have to extremely reduce our carbon footprint.

I agree with you, it would be a big step forward, but the problems are many. The first is obviously the high costs of electric cars, and the second is that not all petrol stations are equipped with charging turrets for electric cars.

I think that, to improve our planet, we should focus on cities.
In fact, they are one of the main sources of pollution.
So we should start limiting all sources of pollution that we can.