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mydriase OP t1_j5fkf3i wrote

Reply to comment by Square_Tea4916 in The evolution of acidity in our oceans // 1910 - 2010 // [OC] by mydriase

So the logic behind this map, as far as I know it, is that, from a purely chemical point of view, cold water is more acidic since the amount of CO2 that can dissolve into water is inversely proportional to the temperature.

So, this would mean cold water becoming warmer,because of climate change, should be less acidic. But then, in reality, more biological processes take place in warmer waters. These processes releases CO2 and acids. So water ends up getting more acidic

This degree of change is exacerbated by the fact polar waters are warming up much faster than the others on earth

That’s why it’s bright yellow, others who didn’t change so much are likely to not have warmed so much (or other reasons I don’t know)

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Significant-Return21 t1_j5fol6k wrote

Those darker regions along coasts and equator reflect upwelling where cold water is transported to the surface.

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mydriase OP t1_j5fp6kk wrote

Thanks. I thought upwelling was bringing water along the coasts of Peru / Chile and Nambia ? Is it also happening in the middle of nowhere ?

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