what the fuck are you talking about, these facilities process the water and return it to the source.
Besides it’s not just the evaporation. The leftover water concentrates a lot of the impurities that already exist in the water, and not all of it ends up in proper treatment facilities, which in turn pollutes the place wherever it ends up being. This is actually a problem in parts of Oregon. https://www.rollingstone.com/culture/culture-features/data-c...
> This is actually a problem in parts of Oregon
The problem in that part of Oregon was preexisting contamination in the drinking water.
"the county’s underground water supply had been tainted with nitrates — a byproduct of chemical fertilizers used by the megafarms and food processing plants where most of his constituents worked."
Discharging a little data center water back into lake Michigan isn't going to make any difference. The entire discharge of ever data center in the world wouldn't register.