Geothermal works great, but location is important. With geothermal you're usually installing coils deep enough underground that you're in the groundwater. The groundwater needs to be moving quickly enough to dissipate the heat/cold, or you'll just warm/cool the region around the coils/radiator and lose the effect.
This website has a strong right-wing political presence that is extremely distracting from what I assume is your primary function, IT news. I expect to have my intelligence challenged here with news and descriptions of new technology, not insulted by viewing some dittohead regurgitating tired demagoguery.
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