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HoloDust said:
CaptainExplosion said:

Won't that heat the ocean?

It would, right around data center's exhausts - but for 1 cubic km of static water to be heated additional 1 degree Celsius in a day you would apparently need ~50GW output, which is 50x of what currently largest data center is capable of consuming. And sea is not static water, so it gets spread out quickly. China has already started doing this.

Or you can build them under residential areas and use excess heat for heating (Finland is doing this).

I thought we were utilizing district heating to move the heat rather than underground data centers, but admittedly I haven't been following the news that closely. Still, I don't remember seeing any news about underground data centers - it's always above the ground, and we seem to have a lot of news about new data centers these days.