https://en.wikipedia.org/wiki/Carbonate#Buffer https://en.wikipedia.org/wiki/Carbonate#Buffer The first paragraph is written as if it only applies to blood, bu

https://en.wikipedia.org/wiki/Carbonate#Buffer https://en.wikipedia.org/wiki/Carbonate#Buffer The first paragraph is written as if it only applies to blood, but chemical equilibria are of course more general, as acknowledged in the second paragraph starting with "Crucially, a similar buffer operates in the oceans." Observe that the arrows for 1, 2 and 3 go both ways, and so represent reversible equilibrating reactions. Perhaps you would like sweet seawater instead of salty seawater, but obviously taste can not be argued. Facts however can.