From what I know, nuclear power sounds like a good option. It has potential for life threatening accidents but if used properly it generates a lot of cost effective energy and creates very little greenhouse gas emissions, the main form of pollution that is a red flag for fossil fuel based energy.
It does generate harmful waste but this might be a good tradeoff compared to greenhouse gas emissions. If nuclear energy did become the dominate form of energy generation, a lot of work would have to be done in managing this waste.
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