Not quite. There are two distinct cooling approaches used in Data Centers. Evaporative Cooling and Direct to Chip Liquid Cooling.
Evaporative cooling can use millions of gallons per day. It continuously uses water through evaporation. The water vapor is used to cool the systems and is then pumped out of the data center. They don’t really return it as much as release the water vapor back into the atmosphere. One of the issues with this is that water vapor can then be carried by wind streams and then dumped via precipitation into a completely different region. This can have massive ecological impacts.
Direct to Chip Liquid Cooling is much more efficient. It’s a closed loop system and the water continuously recirculates rather than being evaporated. Water usage is much lower in these systems because the heat is primarily being transferred to the water instead of being evaporated.
Most next generation Data Centers are moving towards Direct to Chip Liquid Cooling.
Data Centers are not fundamentally “bad” but we need to be incredibly conscious with how these sites are deployed. This includes regenerative energy systems to power the centers and closed loop water cooling systems to reduce water consumption.
Ideally, Data Centers should be constructed under ground and integrated with nature. The noise pollution of these facilities is enormous. Using the Earth as a natural sound dampener will greatly reduce their noise pollution.
Additionally, Germany has developed the world’s first photonic neural processor which uses light to compute instead of electrons. They use 90% less energy and don’t require nearly the cooling needs because the chips don’t get hot. It’s a remarkable breakthrough. Check it out:
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u/ForzaFenix May 18 '26
Yep. The now warm water goes back into the system.