One important thing that nobody thinks about when discussing nuclear fission/fusion as energy source of the future, is that it is not climate neutral at all. Po

One important thing that nobody thinks about when discussing nuclear fission/fusion as energy source of the future, is that it is not climate neutral at all. Popular science tends to forget about that. In fact, nearly all of the energy budget on earth comes from the sun. There is natural fission and energy emission on earth, but you can see that as a background constant and the climate system on earth has adapted to it. Fossil energies are just a very large chemical sink for the energy of the sun, and we just burnt it away at once in geological scales. If humanity now starts to deploy nuclear fission or fusion, it will heat the earth even more. Because that energy was basically trapped inside the atomic core, where it didn't play a significant role for the global climate. With more and more atomic energy usage, the energy will finally end as heat somewhere and increase global temperatures even more (not in the way that fossil energies do with emitted greenhouse gases, but still).