[rapatel0]

New datacenter projects are usually closed loop now.

From your first citation:

> Closed-loop cooling systems enable the reuse of both recycled wastewater and freshwater, allowing water supplies to be used multiple times. A cooling tower can use external air to cool the heated water, allowing it to return to its original temperature. These systems can reduce freshwater use by up to 70%.

[quickthrowman]

Citation please, I don’t buy it. Evaporative cooling towers almost double the efficiency of heat rejection vs a closed loop system. I don’t see any data center operator giving up those operating cost efficiency gains just to save some water, but I could be wrong.

[rapatel0]

As i stated, It's literally in the first link from the OP.