Overview
- A UK Government Digital Sustainability Alliance report projects AI-linked water use rising from roughly 1.1 billion to 6.6 billion cubic metres by 2027.
- Researchers estimate water tied to a single AI query in the millilitre range, yet billions of daily interactions and rapid data-centre expansion drive substantial aggregate demand.
- Corporate disclosures show significant withdrawals in stressed regions, including 41% of Microsoft’s water use and 15% of Google’s consumption in high-scarcity areas.
- Residents in Newton County and Fayette County in the US, and in San Francisco’s Bayview-Hunters Point, report discoloured or sediment-filled tap water near data-centre projects, elevating environmental-justice concerns.
- Cooling strategy and siting choices shape impacts, with options such as closed-loop systems, recycled water and seawater use alongside calls for greater transparency and stronger regulation.