Why does a data center need water? Surely the few people that work there don't require much. If it was for cooling, they could build a high temperature data ce

Why does a data center need water? Surely the few people that work there don't require much. If it was for cooling, they could build a high temperature data center, and manage for 30% humidity instead of controlling temperature. Google makes their own servers, so they could make sure it could stand the heat.