They use evaporative cooling towers because you need far fewer of them. The evaporating water can be separate from the main cooling loop. https://en.wikipedia.o

They use evaporative cooling towers because you need far fewer of them. The evaporating water can be separate from the main cooling loop. https://en.wikipedia.org/wiki/Cooling_tower#Heat_transfer_methods https://en.wikipedia.org/wiki/Cooling_tower#Heat_transfer_me...