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I get the implication that the author is getting more at the diffusion of the Gulf Stream/North Atlantic Current due to mixing of the relatively warm water with cooler water that has melted from glaciers. Thus, you really aren't seeing more warm water in the Atlantic, just a sharper gradient and weaker overall current. I'm not sure that, if it exists, it is strong enough to be noticed or is anything more than a short-term phenomenon, both caveats mentioned by the author. Time will tell, I guess. |