Yes, there are 2 mature technical routes. Air cooling (dry cooling) exchanges heat directly with the atmosphere, so nothing evaporates. It can be applied anywhere, at the cost of lower thermal efficiency, and is now viable because modern servers tolerate higher operating temperatures. Google has required it since 2023 for its new sites in water-stressed areas. Immersion cooling submerges the servers in a dielectric fluid: 90% less water than traditional cooling, 40% lower costs and higher computing density. Adoption of liquid cooling is projected to reach 37% of the data centre fleet in 2026, up from 3% in 2021. How widely they spread depends mainly on their cost and on regulation.
Read the source article: How much water does ChatGPT use? A few drops per query
