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‘We are screwed’: People near data centers dread heat wave pollution.
(www.politico.com)
This is a most excellent place for technology news and articles.
I think you may be underestimating the size of cities. Even San Francisco, famously small for a major city, is 15 times (at approx. 30k acres) the size of the physically largest data center in the US (Switch Reno Tahoe) at 2,000 acres. That's still just 1/7th the size of Manhattan.
I won't argue that 2,000 acres isn't huge for a data center, but just trying to put numbers to the argument.