Data center water use isn't about total volume, it's who runs out of local freshwater first
AryHHAry · x · 2026-09-29
Responding to the claim that 'Earth's water is conserved so AI can't drain it,' the author lays out the real issue: evaporative cooling doesn't destroy water, it moves it from municipal pipes into the atmosphere, and local hydrological cycles take time. The scarce resource is freshwater in specific basins, seasons, and quality grades—not planetary volume. Three layers get conflated: global volume (near-constant), local availability (can break), and indirect footprint (electricity plus chip fabrication, often exceeding on-site cooling). The right question is whose water is taken, returned where, and who goes thirsty first.
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