In the US, datacenters can consume anywhere between 300,000 and four million gallons of water a day.
By 2027 global AI demand could account for the withdrawal of 4.2-6.6 billion cubic meters of water annually. That's roughly the equivalent of half the UK's water withdrawal over the course of a year.
Evaporating ten gallons a minute is enough to cool roughly 1.5 megawatts of compute.
Even though we have a global water crisis, data center water is super cheap.
https://www.theregister.com/AMP/2025/01/04/how_datacenters_use_water/