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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:

esaiah101   2025-11-17 15:00:03 (Last post: 2025-11-18 15:40:44)
Ocean Acidification

ocean acidification is something that has to do with carbon dioxide going into the ocean. Its when green house gases rises into the atmosphere but a portion gets sucks up by the ocean.there is a website that you can learn more about just search up ocean acidification. But this is bad for the environment because of the sea life like mostly coral so people who are making all of this carbon dioxide is hurting the ocean and that's why we need to stop making so much.

okoklala   2025-11-18 15:40:44

I wholeheartedly agree with your statement. Ocean acidification is the decrease of the PH level in our oceans, which is caused primarily by the process of carbon dioxide diffusing into the water. This process reduces the availability of carbonate ions, which many shellfish species rely on to form their shells. Shells of organisms like mollusks and other invertebrates will dissolve because of how purely acidic the ocean waters are. This causes widespread negative impacts on the entire food chain- over 3 billion humans rely on seafood as a food source. We as residents of this planet must absolutely strive to lower our collective carbon footprint, because our day-to-day actions and reliance on fossil fuels is highly harming oceans and all beings that call oceans their home.

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Sahar A   2025-11-12 12:22:05 (Last post: 2025-11-18 15:31:15)
Reducing waste and not litering

Reducing waste can be a good action to save oceans. The waste humans make and when they litter, all of it finds its way towards the ocean eventually. This can have a bad affect on the creatures living in the ocean leading to as high as making some go instinct. Recycling and picking up our trash can prevent all of this by making our oceans clean and a good environment for all the creatures on earth.

Henry W   2025-11-18 15:31:15

I agree to this. Bring a reusable bag when you go shopping is a easy way to reduce the use of single use bags; lowering the amount of waste that you produce. Another way that you can reduce waste is trying not to use a new ziplock bag everytime you pack a sandwich or snack. You can use the same Ziplock bag by washing it after you use it. This reduces the amount of plastic you use.

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Adrey   2025-11-16 23:02:29 (Last post: 2025-11-18 15:20:37)
Impact of CO2 on the Ocean

Carbon dioxide emissions affect not only our atmosphere, but also the Ocean and the organisms that call it home. We have already realized what plastic pollution does to the ocean, but the impact greenhouse gases on this aquatic environment seem to have been overlooked. This is another reason why we must make better choices for the environment.

Ameeranijjar   2025-11-18 15:14:24

I agree with this. Plastic pollution has a huge negative impact on our environment and if we don't act fast our oceans will get even more acidic.Our oceans have already taken the negative impact of CO2 emissions and it has caused coral bleaching. Coral bleaching is a coral's response to stressful conditions, such as the ocean acidification. This topic is a good reason to make better choices in our day to day life.

ZoeBall   2025-11-18 15:20:37

I agree with this statement. Since the impact that greenhouse gases have on the ocean doesnt only effect the beings that live in the ocean but also everyone else who relies on the ocean. Since more than 3 billion people rely on the ocean for their main food source greenhouse gases effecting this aquatic environment could greatly impact their lively hood. Also if we do not try to spread awareness to this issue and the effects it can cause the majority of people will not try to change their ways to try and stop this issue before the damage becomes unchangeable.

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alyssak2024   2024-10-24 11:29:13 (Last post: 2025-11-14 16:15:46)
Ocean Acidifcation

Ocean acidification is a rising environmental issue that poses a significant threat to marine ecosystems. As carbon dioxide levels rise in the atmosphere,a portion is absorbed by the oceans, leading to a decrease in pH levels. This chemical shift can have devastating effects on marine life, particularly organisms with calcium carbonate shells or skeletons, such as coral reefs and shellfish, which struggle to maintain their structures in more acidic waters. To help this issue, we can take  action by reducing our carbon footprints through lifestyle changes. Such as advocating for renewable energy sources, and supporting policies aimed at decreasing greenhouse gas emissions. Promoting awareness and education about ocean health can help communities to engage in conservation efforts to help our oceans.
I have also found a link about more information in ways we can help our oceans and marine life. https://texanbynature.org/2019/08/5-way … our-ocean/

Mammon   2024-10-25 07:10:04

I had no idea that what we put out goes all the way into the oceans...that is really sad to read about. Putting this post up will definitely help with my drive to cut down on carbon emissions.

Justo   2025-11-14 00:06:12

I agree with this because we need to conserve marine life, because without marine life the water would end up being toxic due to a lack of a diverse ecosystem, and if we reduce the use of fossil fuels and come up with a safer source of energy all will be well for humans and the environment.

esaiah101   2025-11-14 15:29:35

I never knew how me playing on the video game is hurting the ocean but I do agree that we need to find a better way to use energy. I think we should use hrydro energy

Connor10   2025-11-14 16:15:46

I agree with this, the Ocean is very important.I also like that it included a link to help the Ocean.

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Connor10   2025-11-14 16:11:14
Ocean Acidification

I am worried about the Ocean having less fish. Ocean Acidification is when the Ocean’s PH changes due to a higher amount of carbon dioxide in the atmosphere, it hurts marine life. It also causes Ocean warming. We should stop Ocean Acidification by not using fossil fuels.

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aaandreaaa   2025-05-18 21:19:32 (Last post: 2025-11-14 12:18:44)
Ocean Acidification

Ocean Acidification is when the ocean becomes more acidic due to too much carbon dioxide in the air. The ocean absorbs this and it then mixes with the water which forms an acid. This acid can be harmful towards sea life like clams, oysters, and coral because it makes it harder for them to build their shells. Many sea animals like fish, depend on coral reefs for a place to live and to have shelter. If we continue to pollute the air, ocean acidification can become even more harmful not only to us but to ocean life as well.

gr4xcii   2025-11-14 12:18:44

this is very useful information, and I agree with you that if we continue to harm the ocean it can become even more harmful towards us. You've proven some very good key factors as to why we should try our best to reduce how much acidity we put into por ocean, but how can reduce how much and what can I do to prevent myself from producing too much carbon?

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SarayuR   2025-11-14 00:02:59
Acidity in the Indian Ocean compared to the Pacific Ocean

The Indian Ocean and the Pacific Ocean are both becoming more acidic as they absorb increasing amounts of carbon dioxide, but they acidify for slightly different reasons and at different rates. Studies show that the Indian Ocean’s surface pH has been decreasing at about 0.015 pH units per decade, mainly due to high Carbon dioxide uptake and warming that changes how water mixes. In contrast, the Pacific Ocean experiences strong acidification in regions with upwelling, where deep, Carbon dioxide-rich water rises to the surface and lowers pH even more. Although, according to IPCC modeling, all major ocean basins, including the Indian and Pacific, are expected to continue acidifying. So even though the patterns of the two oceans are different, both of them are growing in acidity levels.

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anotherjones   2025-11-12 16:18:37
Acidity Rising in The Indian Ocean

Since 1980, there has been a steady decline in The Indian Ocean's pH level, causing it to be more acidic. Going from 8.2 pH in 1980 to 7.94 in 2025. It has been declining at a rate of 0.015 every decade. This could pose problems in the future to any marine wildlife that will live there. Does anyone have a reason for this?

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Maeha   2025-11-11 14:18:09
Ocean Acidification in India

In the years 1980-2019, pH of the oceans around India has decreased by 0.015. Years after 2019 have notices that the pH is decreasing at speeds higher than they were before annually. This is likely due to the amount of factories running so they can provide for the population. It is a known fact that India has also been taking part in the popular field of AI and AI research, so i was wondering whether the government should stop investing money in AI research and rather focus on finding sustainable solutions for factories.

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sofiathefifth   2025-11-07 12:33:55
Factories

I think we need to stop putting our factories near or in our oceans to at least slow down the pollution.

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nora123   2024-11-18 14:50:06 (Last post: 2025-05-18 21:34:00)
The ocean is dying

Ocean acidification is no joke. So many different sea animals are going extinct, many of these are keystone species. For example coral reefs are a big concern because they are going through mass extinction, this is because of the carbon getting into the ocean and heating it up. This happens because the carbon is reducing the ph levels and making the ocean more acidic which corals react very poorly to because the water is so warm, the coral will expel the algae that lives in their tissues and the coral will turn white, if the algae doesn’t come back the coral will die. This can happen in 4 weeks if the water goes up by 1 degree celsius, if this keeps happening we will have no coral in the future and coral reefs are a keystone ecosystem for so many species.

ashaw   2024-11-18 15:01:19

I completely agree with this. Ocean acidification needs to be talked about more so that a difference can be made. The longer we wait, the harder it would be to come back from our mistakes. Keystone species are a crucial part to our ecosystems and many more species will die if we keep doing what we are doing. Our planet is warming at such an alarming rate, organisms don't have time to evolve and adapt to these new circumstances. The last time the earth's climate changed this much there was a mass extinction. We need to worry about our carbon emissions now, so that in the future coral still exists.

ella223   2024-11-18 15:06:47

I agree with what you are saying nora. The oceans have never been this warm and I don’t think they will ever go back down. Even if the feature we reduce the amount of carbon we produce we can’t bring the coral back to life. We have to take action now if we want to save our oceans. I’m fortunate enough to have gone snorkelling before and see how beautiful the coral is. I and assume everyone else wants to be able to go snorkelling with their own kids, and not have to tell them about them like we talk about dinosaurs today.

Mlaurence   2024-11-20 18:31:39

I agree with everything that u guys are saying. There is absolutely no way we can fight a problem most people don’t even know is happening. Most people hear about oceans being polluted by micro plastics but not how the fundamental chemistry of our oceans are being changed. And un like most climate issues where there are a hole bunch of different causes we know that this is being caused by an increased amounts of carbon in the atmosphere. Which causes the ocean to heat up. People say it’s hard to fight for something you can’t feel or see happening. This is why the worming of the planet is being so strongly fought for but you can see the impacts of worming oceans. When you see the news that says we are in a mass extinction event and you go back to your favourite scuba diving or fishing spot and there are no fish and the coral Reeves are bleached. Or u dip you feet in the ocean and don’t feel that familiar numbing cold. Our every impact is shown all around us and if we are going to solve this problem you can’t look away.

aaandreaaa   2025-05-18 21:34:00

I as well agree with what your saying about ocean acidification. It's really sad and disappointing to see how much ocean life is going extinct and is in danger because of it. Coral reefs are very important and its honestly scary that they can die so fast just from the water changing its temperatures. They help and benefit many sea creatures and if this continues it will change the future of of our ocean life. We really need to stop polluting and try to protect our oceans before it gets to late.

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JuYa   2025-05-17 12:48:43 (Last post: 2025-05-18 20:33:48)
Ocean Acidification Analysis

Ocean acidification is a worldwide environmental issue mainly resulting from the increase in carbon dioxide (CO₂) levels in the atmosphere due to human activities such as burning fossil fuels and deforestation. When the ocean takes up too much CO₂, it dissolves into seawater to form carbonic acid, which lowers pH and reduces the amount of carbonate ions—a crucial ingredient for sea animals that build shells and skeletons, including corals, mollusks, and some plankton. This chemical process makes it more difficult for these animals to survive, breed, and maintain healthy populations, and threatening entire ocean food webs. The sources of ocean acidification have a lot to do with industrialization and continued reliance on carbon-releasing energy sources. The sea is projected to absorb about 30% of atmospheric CO₂ emissions, buffering global warming but accelerating acidification. Impacts are extensive, penetrating biodiversity, fishery, and marine-based coastal communities relying on the sea for livelihood and food. Coral reefs, which support around 25% of marine life overall, are particularly vulnerable and face increased threats of bleaching and erosion. Ocean acidification also effects the ocean's ability to store carbon, potentially reducing its potential to buffer climate change in the long term. This can be addressed through international cooperation to reduce carbon emissions, advance sustainable development, and tailor efforts to affected communities and ecosystems.

habiBOD35   2025-05-18 20:33:48

Thanks for sharing this! Ocean acidification is something I didn’t know much about until recently, and your post really helped break it down. It's wild how something like CO₂—something we can't even see—can have such a big impact on sea life.I didn’t realize coral reefs support that much marine life. That really puts into perspective how serious this is, especially for people who rely on fishing or live near the coast. It's kind of scary, but I like how you mentioned that there are solutions, like working together internationally and focusing on sustainability.
I’ve been trying to be more mindful about energy use, like unplugging stuff I’m not using and choosing more eco-friendly products. It feels small, but I think every little bit helps. Thanks again—your post was super informative and made me think more about how connected everything really is. ?

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