Those are less of a problem. The heat was coming from the sun anyway. The water condenses out, so long as you haven't also increased the overall temperature in other ways.

The CO2, by contrast, is the gift that keeps on giving. It absorbs extra heat every day and hangs onto it. It doesn't condense or break down.

If that PV went to displacing sources of greenhouse gas, it would be a benefit. If all it's doing is running the plagiarism machine while we burn more and more "clean" coal, then we are in deep, deep trouble.

That’s what solar energy does when it hits the ground or the oceans. It turns into heat or evaporated water. The latter is why it rains.

Harnessing it and piping it through extra steps only to end up as heat does nothing to the planet’s heat balance. All human energy use is tiny compared to total global solar flux. Like not even 1%.

The data center water issue is a municipal management problem. The problem is that evaporative cooling is cheaper. If data centers are using too much water to the point that it’s causing problems for homes or agriculture, it means they are not being charged enough for that water. Charge them more and they will suddenly shift toward more closed loop cooling.