It is beyond my imagination why people would downvote you for asking a geniue question - most of us aren’t even geologists. Search doesn’t always lead us to an

It is beyond my imagination why people would downvote you for asking a geniue question - most of us aren’t even geologists. Search doesn’t always lead us to an authoritative answer. Anyway, you did raise a good question, althoug focused on the core. I have a similar concern with the immediate extraction. We know that there is plenty of water underground we can relie on for many years - critical for drought seasons, but underground overuse (or called ungerground depletion) can lead to a number of environmental problems such as land subsidence. The extraction must be done at a reasonable depth below the surface, but what is the rate of the heat influx reaching this depth? Would we deplete this energy before wr can replenish? Is this even a concern? Furthermote, if you look at Wikipedia, there are a number of environment concerns. Although pollution is far less than what is generated by burning fossil fuel, nonetheless, careful design and location are required.