So as we all know (or at least I assume) Global Warming is real and happening, I am a teen, 17, and not trying to get answers for homework or anything like that. I just want to know, is it possible to create fusion using the temperature found at active Geo-thermal sites to reach the temp needed for nuclear fusion, combined with proton-proton fusion process(or Similar) to create a viable fusion reactor? I know the temp needed for fusion is 400 degrees Celsius, such a temp is found at actives sites from what I've read, and I've read that the Tokamak Nuclear Test Reactor has achieved both the density and temp need for fusion but is unable to do both at the same time, would this fix this problem? And is this too wordy? Is this a dumb idea?