Water consumption at AI data centers has rapidly emerged as a major point of contention on par with energy use. Nvidia, Microsoft, Google and Amazon are rolling out cooling technologies and transparency measures, even as resident and local-government opposition spreads and moves toward tighter regulation gain traction.
June 25, 2026 · AI Infrastructure
Water Becomes AI's New Flashpoint
As data centers multiply, water use is rising alongside electricity as a battleground for regulators and communities. Nvidia says the problem is "largely solved"; local opposition says otherwise.
1T
liters of water used by N. American data centers in 2025 — equal to New York City's annual demand
75%
of a data center's water footprint comes from electricity generation, not on-site cooling
70%
of Americans oppose data center construction in their community (Gallup, May)
Water efficiency disclosed by major operators
Liters of water per kWh — taller column means more water used (lower is better). Amazon claims ~1/7 of the industry average.
0.11 L
Amazon0.03 gal/kWh
0.27 L
Microsoft0.27 L/kWh
1.15 L
Google~1.15 L/kWh (avg)
Amazon also reports a 52% year-over-year efficiency improvement.
Nvidia's claim · London Climate Week
"The water consumption challenge for data centers is largely solved."
113°F
warm coolant fully cools next-gen systems (~45°C)
Closed loop
water + propylene glycol mix cuts or eliminates extra chilling
Years away
existing sites keep older methods; rollout hinges on economics
Progress underway
Amazon sets a "water positive" target and issues its first water report
Microsoft cites water-reduction measures; Google promotes standards
Closed-loop cooling draws praise from some experts
Unresolved concerns
Mid-to-large sites use 300k–5M gallons/day — "as much as a town"
Aggregate figures mask local impacts, especially in drought areas
Investors press for site-level water and power disclosure
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