Air cooling is probably not possible at modern data center scale (at least AI data centers, they have ridiculous power density), closed loop cooling very much is, but it takes more power so it’s cheaper to just evaporate a ton of air unfortunately.
Going to need bills like this everywhere, or water prices raised significantly for non-home usage.
As far as I understand, they use air conditioning PLUS water cooling. As in, the water is used to cool the AC condensers. Because even just AC alone isn’t cutting it.