It's crazy to move from Nuclear to coal for the sake of the environment. Renewables are great when the sun is shining and the wind is blowing, but the rest of the time Nuclear is the better choice
There was a radioactive cloud over most of Europe after Chernobyl. It is much harder politically to defend nuclear energy once you lived through that disaster.
I thinkits easy to politically argue for nukes. They are like planes, when they crash it's a big deal, still comparatively safest method.
I am not a fan of mass producing waste that renders some area or space inhabitable for most of life, for longer than our written history or even our species. Though, maybe it's better than burning fossils as a mean of getting to something cleaner and safer (and cheap). Tough choice.
I think i'd nuke waste and some disasters over greenhouse I guess, especially runaway.