this post was submitted on 19 May 2026
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If you take local temperatures of the ocean at different latitudes, they won't all be the mean temperature of the ocean. It isn't a single massive heat sink.
Data centers raise nearby temperatures by up to 4 degrees in Phoenix
I don’t believe they meant it that way. At that scale, literally nothing will be a uniform temperature.
That's true, but water is so much more effective at absorbing heat than air, the effect will be negligible. It takes about 4.2 megajoules to raise one cubic meter of water 1 degree C. That energy would raise over 3 cubic KILOMETERS of air 1 degree C.
Even putting data centers at the bottom of large lakes would be unlikely to have an effect. It will not be percetable in the ocean. Regarding temperature anyway, other factors are worth considering.