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Ocean Acidification

In addition to the famous impacts of atmospheric carbon on global warming, there is an equally worrisome effect of carbon dioxide on the oceans: ocean acidification (or OA for short). Here at I2SEA we have a series of resources about OA, including Our Acidifying Ocean, which is an introductory activity and virtual lab (note: now mobile compatible!).

A student suggested that we start a conversation topic about OA, and here it is! Have you heard about Ocean Acidification? If so, are you worried about it? How do you think we can best raise awareness about it among your fellow students and the general public? Have you seen particularly good links or films about OA that you would like to share? What are you doing to address the problem?




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Ocean Acidification

Recent posts:

MRollo   2021-05-12 21:34:36 (Last post: Today 10:40:34)
Water Pollution

Water pollution occurs when harmful substances, often chemicals or microorganisms, contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment. Water is uniquely vulnerable to pollution. Known as a “universal solvent,” water can dissolve more substances than any other liquid on earth. It’s the reason our world is so abundant with water, but it is also why water is so easily polluted. Toxic substances from farms, towns, and factories readily dissolve into and mix with it, causing water pollution. There are many categories of water pollution including, groundwater, surface water, ocean water, agriculture, and wastewater. There are also several ways we can reduce water pollution. One of them is to reuse the water that we have used daily and we use fresh water for cooking purposes, drinking purposes, and even for washing purposes. Using recycled or clean water is also a very important part of environmentally friendly water management. According to, https://www.water-pollution.org.uk/prev … pollution/, reducing water waste at home is not as hard as some make it out to be. Conserve water by turning off the tap when running water is not necessary. This helps prevent water shortages and reduces the amount of contaminated water that needs treatment. Take great care, not to overuse pesticides and fertilizers, this will prevent runoffs of the material into nearby water sources. Don’t throw litter into rivers, lakes, or oceans. Help clean up any litter you see on beaches or in rivers and lakes, make sure it is safe to collect the litter, and put it in a nearby trash bin. Although water covers almost all of the Earth, safe drinking water is scarce, so we need to do our best to protect the amount we have.

Tevaaa   2021-09-22 18:56:12

Very very very good !

Sand James   Today 10:35:08

Love this, water pollution also leads to animal extinction and habitat extinction.

K@I   Today 10:40:34

Love this so much, it's very informative. Water pollution also effects our food sources. Way more fish are dying, and that leads to big fishing companies over fishing in normally protected areas, and once all those fish are gone, we'll have an even bigger fish shortage than we already have.

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Sam_nocera   Today 10:23:46
Ocean Acidification

Ocean Acidification is a big problem as many of the resources come from Oceans. This phenomenon is killing biodiversity and therefor many of our food sources. With ocean acidification, over half of earth's coral reefs have died and its estimated that another 40% will die in the next 30 years. We must act now.

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Vaiani..B   2021-09-26 23:42:11
Ocean Acidification

Hello everyone.
Today, our world and our mother nature have changed enormously. Our oceans are the first victims of global warming. We, Polynesians, live on islands and of course, the ocean is our first source of life, whether for leisure, relaxation or food. But the acidification of the oceans exists and we must take an action before it's too late and we can't even set foot in them anymore due to this acidification. It is therefore important that we first become aware of this emergency and share this message with as many people as possible to find a way to remedy it.

And thank you to ISCFC for letting us take part in this environmental project.

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Vaiani..B   2021-09-26 23:24:35
Ocean Acidification

We need to take an action for ourselves.

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Hitimarama EC1   2021-09-22 19:08:48 (Last post: 2021-09-23 06:30:12)
Water pollution

If we do nothing, we will no longer be able to eat our good fish.
If we do nothing, we won’t be able to go surfing anymore.
And finally, If we do nothing, our children will not be able to enjoy our beautiful ocean.
So, be careful of our ocean !

Madda   2021-09-23 06:25:43

ciao sono pienamente d'accordo con te. non dobbiamo inquinare l'ambiente e gli oceani

Madda   2021-09-23 06:30:12

ciao sono pienamente d'accordo con te. Non dobbiamo inquinare l'ambiente e gli oceani

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Keanu R   2021-09-22 19:17:46
Ocean pollution

Corals reefs are dying here in Tahiti because of pollution and global warming , as a consequence the water in the ocean is becoming more acid , the biodiversity is in danger. In a couple years our islands will be below sea level .
Our generation is on the front line , we have to stand for our futur because there is no planet B.
Grown your own food , stop using plastic bags , consume local.
Let's gooo!

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etgoBOD   2021-05-12 21:11:09 (Last post: 2021-09-22 19:07:15)
Overview of Ocean Acidification and its Impacts

The concentration of CO2 in the atmosphere has increased greatly since the Industrial Revolution due to human actions, and the surface ocean has had a 30% increase in acidity.
The ocean absorbs 30% of the CO2 found in the atmosphere, which has been increasing in recent years due to deforestation and fossil fuel use. Carbon dioxide dissolves into seawater and forms carbonic acid, making the ocean more acidic. Plants and animals are being greatly affected by this acidification, resulting in trophic cascades and the destruction of ecosystems. In addition, ocean plants are being negatively impacted by the acidic water and as a result, they are unable to decrease atmospheric CO2 through photosynthesis (noaa.gov, britannica.com).

el13   2021-09-22 19:07:15

Hello I think that the more acidic the ocean becomes, the less plankton develops and the less oxygen it produces, which is necessary for the oceanic and atmospheric balance
Bye

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etgoBOD   2021-05-12 21:05:24
Overview of Ocean Acidification and its Impacts

The concentration of CO2 in the atmosphere has increased greatly since the Industrial Revolution due to human actions, and the surface ocean has had a 30% increase in acidity.
The ocean absorbs 30% of the CO2 found in the atmosphere, which has been increasing in recent years due to deforestation and fossil fuel use. Carbon dioxide dissolves into seawater and forms carbonic acid, making the ocean more acidic. Plants and animals are being greatly affected by this acidification, resulting in trophic cascades and the destruction of ecosystems. In addition, ocean plants are being negatively impacted by the acidic water and as a result, they are unable to decrease atmospheric CO2 through photosynthesis.

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brkaBOD   2021-05-12 19:28:04
Ocean Acidification

Ocean acidification is the rising levels of acidic compounds in the ocean.  Ocean acidification is primarily caused by rising levels of carbon dioxide in the atmosphere. Ocean acidification causes a reduction of carbonate ions, which are most marine animals' primary source of nutrients when developing body parts such as shells. Ocean acidification can affect humans in that it leads to the lack of sea-life development in the water, therefore impacting the fishing and trapping industry.

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saguBOD   2021-05-12 16:58:53 (Last post: 2021-05-12 17:02:10)
Ocean Acidification

Ocean acidification is the name for the ocean becoming increasingly acidic, due to the increase of carbon dioxide in the atmosphere. The main cause of this is the burning of fossil fuels. Acidification reduces the availability of carbonate ions in ocean water, which provide the building blocks marine organisms need to make their shells and skeletons, significantly reducing the chances for their offspring to survive. This affects humans because ocean acidification has the potential to impact many ocean-related benefits to society such as coastal protection, food, and income.

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amraBOD   2021-05-03 21:15:34 (Last post: 2021-05-04 10:09:32)
Ocean Acidification: Explanation, Effects, Ways to Help

Ocean acidification has become a very important and worrisome issue that needs to be addressed. According to a study performed by the Union of Concerned Scientists, the ocean has absorbed approximately 29% of the world's CO2 emissions since industrialization began. In the last 150 years humans have been burning increasing amounts of fossil fuel, which releases large amounts of greenhouse gasses into the atmosphere, one being CO2. This additional CO2 released in the atmosphere is the root of ocean acidification. Ocean acidification is the reaction between the large amounts of CO2 being absorbed and the sea water. When the CO2 first makes contact with sea water it dissolves, becoming carbonic acid, which later turns into bicarbonate ions and hydrogen ions. Ocean acidification occurs due to the lack of carbonate ions and an increase in hydrogen ions. Carbonate ions are responsible for maintaining the health of many species, including clams, muscles, phytoplankton, corals and crabs, who rely on it to build their hard skeletons. This is why ocean acidification has an incredibly negative effect on such species. Corals, one of the species affected, are one of the most biodiverse habitats in the ocean and because of this their destruction not only affects them, but also the large amount of marine species that are reliant on them. This issue not only affects marine life but also humans, so often we humans forget how much we truly rely on the ocean. We use the ocean as a constant source of food, transportation, medicine and enjoyable attractions that help better our economy. Since we are reliant on the ocean for so many things we can begin to see the extent of our connection to it. One of our largest connections is our reliance on it for food. The species being affected by ocean acidification are the basis of the marine food chain and if we allow this issue to continue to develop, it could have catastrophic effects on all species, including humans. Additionally, fishing and shellfishing from the ocean is a multimillion industry that so many people rely for employment. When ocean acidification begins to deplete the amount of shellfish and corals that house fish, the companies that rely on them will be forced to shut down, creating mass unemployment and more hunger. Not to mention that ocean acidification is responsible for a rise in the blooming of toxic algae, which has also contributed to fish and shellfishing companies having to shut down in order to prevent reactions to the contaminated fish and shellfish. These many effects are some of the reasons why bringing awareness to the issue of ocean acidification is so important. We need to begin to have conversations about this issue and ways we can create a more sustainable world to prevent ocean acidification from creating more damage. One way that we can address this issue is by supporting policies that go against the mass burning of fossil fuels. By doing this we get to the root of the issue so we can prevent the issues that stem from burning fossil fuels, one being ocean acidification, and their effects.

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Cdarren   2021-04-28 08:40:40 (Last post: 2021-05-02 21:28:35)
electric cars

How much will electric cars help the enviroment?

Camila M   2021-04-28 08:49:25

Electric cars are way better than non-electric cars and are shown to have a lower carbon emission.

ZachG   2021-05-02 14:08:48

I agree that electric cars are shown to have a lower carbon emission and on top of that, there are many more ways of environmentally producing electricity such as solar panels and windmills.

aujoBOD   2021-05-02 15:44:46

Electric cars will help ocean acidification. The has absorbed between a third and one-half of the CO2 humans have released into the atmosphere since 1850. The average car produces 4.6 metric tons of CO2 per year, and each gallon produces 8,887 grams of CO2. Electric cars will really help slow ocean acidification, which makes it difficult for calcifying organisms (organisms that use calcium to make their shells/exoskeletons) to make their shells/exoskeletons. Electric cars are a great way to slow ocean acidification as long as they stay affordable to the public.

emreBOD   2021-05-02 21:28:35

While electric cars have lower direct co2 emissions it does not mean that they do not emit carbon. According to the IHS, the average car ownership length was 79.3. according to the EPA "A typical passenger vehicle emits about 4.6 metric tons of carbon dioxide per year." so the average car owner emits ~30.4 metric tons of co2 over the time period they own a car. According to a study done by the Swedish environmental institute "17.5 tons of carbon dioxide is emitted by the making of the average electric car battery" or 15.87 metric tons. Which is equivalent to driving the average car for 3.45 years. According to vivint solar the average Ev takes 30kwh per 100 miles. 1kwh emits ~0.92 pounds of carbon dioxide(this verys on where you are for example france has 75% nuclear which is clean,) with the average driver in california driving 12524 miles a year, the average ev driver will emmit 1.7 metric tons of co2 which is significantly less than that of a car. Using y=mx+b where y equals 30.4 metric tones and m is 1.7, x is the number of years a person drives a car and b is the co2 emissions in making the battery(a battery is the equivalent of a gas tank in a normal car which does not emmit much co2 to make). 30.4=1.7x + 15.87, 14.53= 1.7x, 8.54 equals x,  so  on average if you buy a new electric car  you have to drive it for around 8 years before the co2 emissions become equal(this is a very rough estimate so take it with a grain of salt). To save emitting carbon on transportation either buy used cars to eliminate production co2 emissions (also they are a ton cheaper) or try taking public transportation as the extra fuel taken to move your extra mass is negligible.

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