personally I think we should look at 12 km tall floating balloons piping a suitable vapor at ground temperature up, dumps the heat a bit above the tropopauze, condenses the vapor so it rains back down (perhaps in a loop, perhaps as a naive thermosiphon).
I believe we can generate baseload energy by cooling the planet... nearly everywhere, no fuels needed.
Please elaborate. Immediated Q's Pumping costs energy. Condensation and rain implies water vapor. How does energy get down as not heat (otherwise whats the point). What makes you think it can change anything significant about the selfregulating thermodynamic system we refer to as climate.
I'm genuinely curious, just wanted to make that explicit, bc. ladt sentence might evoke the opposite impression. (Also not sure if it's intended as a joke on the other hand)