If prosperous (as that's usually a match for a low chance of armed conflicht) nations mostly expand to non-fossil energy sources that aren't available/viable fo

If prosperous (as that's usually a match for a low chance of armed conflicht) nations mostly expand to non-fossil energy sources that aren't available/viable for developing/poorer nations, this is an issue since their power system won't profit from a large amount of research & investments on how to run a non-fossil fuel based system. With the energy usage of non-western countries exploding quickly this could be a major hinderance to stopping climate change if all prosperous nations go all-in on nuclear and discourage other countries from doing so because of the risk. A non realistic scenario tbh, it's very unlikely that e.g. germany will construct new nuclear power plants and a lot of not-very-stable countries already use nuclear power as we're seeing right now.