Thanks. By your link we have a 47TW of annual heat loss from the Earth due to the surface heat flux, that makes 92 KW/Km² annual (Earth is 510M km² [148.9M km²

Thanks. By your link we have a 47TW of annual heat loss from the Earth due to the surface heat flux, that makes 92 KW/Km² annual (Earth is 510M km² [148.9M km² of land]). If the thermal diffusivity can not feed a tinny surface hole more than 20-30 years after extracting just around 3-10 MW, where the sun is supposed to replenish the heat on summer also, what makes the scientific community to have faith the slowness in such thermal diffusivity will not bring consequences? Did anyone study it? ( EDIT: we are talking about more than several centuries, I guess, so my interest decreased proportionally. )