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It exchanges heat, water and carbon with the atmosphere, helping to control our weather in Europe and marine ecosystems. Climate change is causing the planet to warm.
Warmer water cannot contain the same amount of oxygen as cold water. As a result, oxygen from the oceans moves to the atmosphere. Increased thermal stratification may reduce the supply of oxygen from surface waters to deeper waters. This lowers the water's oxygen content even more. [8] The ocean has already lost oxygen throughout its water column.
Ocean circulation events cause this process to be variable. For example, during El Nino events there is less deep ocean upwelling, leading to lower outgassing of carbon dioxide into the atmosphere. [18] Biological processes also lead to ocean-atmosphere carbon exchange. Carbon dioxide equilibrates between the atmosphere and the ocean's surface ...
This deep ocean water circulation is relatively slow and water at the bottom of the ocean can be isolated from the ocean surface and atmosphere for hundreds or even a few thousand years. [113] This circulation has important impacts on the global climate system and on the uptake and redistribution of pollutants and gases such as carbon dioxide ...
While there are many abiotic sources and sinks for O 2, the presence of the profuse concentration of free oxygen in modern Earth's atmosphere and ocean is attributed to O 2 production from the biological process of oxygenic photosynthesis in conjunction with a biological sink known as the biological pump and a geologic process of carbon burial involving plate tectonics.
The oceans are not just a marine habitat. They are also a workplace, a highway, a prison, a grocery store, a trash can, a cemetery — and much more. Why we need to think about the oceans differently
A controlled experiment found that reading climate fiction short stories "had small but significant positive effects on several important beliefs and attitudes about global warming – observed immediately after participants read the stories", though "these effects diminished to statistical nonsignificance after a one-month interval".
The absorption of CO 2 from the atmosphere does not affect the ocean's alkalinity. [34]: 2252 This is important to know in this context as alkalinity is the capacity of water to resist acidification. [35] Ocean alkalinity enhancement has been proposed as one option to add alkalinity to the ocean and therefore buffer against pH changes.