A mid-sized data center can use about 300,000 gallons of water a day, roughly the daily consumption of 1,000 homes. That is why AI infrastructure has become a local political issue wherever new facilities are proposed.
On June 3, Google said its data centers will become water positive by 2030. The target is to replenish more than 19 billion gallons a year, more than double its 2024 water use and nearly three times the 7 billion gallons it replenished in 2025. The plan spans 165 water stewardship projects in 97 watersheds, backed by more than $500 million already spent on water infrastructure and a new $17 million commitment in seven US states.
The company also set five operating rules: become water positive by 2030, help nearby communities upgrade aging water and wastewater systems, use air cooling in high-risk water-stressed regions, publish annual water data, and rely more on recycled or reclaimed water. Google says water cooling can cut data-center energy use by about 10% compared with air cooling, so the trade-off is not simple: saving power can reduce fossil-fuel demand, but scarce-water regions may still require air cooling.
Sources：Google pledge coverage from Engadget; MobileSyrup coverage of the 2030 data-center water commitment; CocoLoop