Why do data centers use fresh water?

Reddit r/ArtificialInteligence News

Summary

This article questions why data centers use fresh water and suggests that coolant water could be recycled and cooled underground, similar to automotive systems, to reduce water consumption.

Why would a data center use any fresh water? We have been recycling coolant water for over 100 years in autos. The earth is 50ish degrees and circulating coolant underground could be cooled by the earth at a fraction of the water usage.
Original Article

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