Comment by MathMonkeyMan
2 months ago
Even if the ambient relative humidity is near 100%, water's latent heat of vaporization is nothing to shake a stick at.
I like the idea of a giant heat pump into the ground, but heat exchangers are expensive and so is digging.
Nobody is talking about a giant ground-exchange heat pump: liquid-to-air dry coolers exist and are used everywhere. Adiabatic cooling is just cheaper.