Aria 
🏳️⚧️ok. I get that datacenters use a lot of electricity. What I'm not understanding is how they use a lot of water. Isn't it a closed loop system? Like, yes, a lot of water up front, but once it's there you're not using huge amounts more every day for basic operation? Or am I missing something?
Or are they just doing something incredibly stupid like running open faucets over servers to keep them cool?
Saphira Lohikäärmekettunen 
🚫 KubeCon Europe@aria often evaporation cooling is used, which is not a closed loop but cooling stuff down by running water over it and let it evaporate into the air and sky - so yea, that's actually what they do kinda, just not over servers but heat exchanger of the hot side of a closed loop
@littlefox
....
I guess I shouldn't have made the assumption that the techbros would chose a more sensible option over ✨ maximum performance✨
....
I guess I shouldn't have made the assumption that the techbros would chose a more sensible option over ✨ maximum performance✨
Melody 
鳥 
@aria
@littlefox
This is a super common system for HVAC anywhere that one can reliably evaporate water. It's known as a swamp cooler for residential, and is far more energy efficient than other methods which makes for a lower carbon footprint. That's good!
The tradeoff is that you end up using water to remove heat. And it can be a lot of water if there's a lot of heat generated, which is bad.