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It's always troubled me that the green folks wanting to eliminate fossil fuels will turn their head away from nuclear energy, pretending that the fate of Chernobyl is emblematic of all nuclear energy plants. OPEC has the monopoly on oil and the R&D into green forms of energy aren't happening fast enough, especially when you eliminate nuclear as an option.
Nuclear has it's own set of problems. It produces no carbon emissions, but it does create radioactive waste that takes thousands of years to degrade and has to be safely and securely stored. On top of that, the natural disaster at Fukushima showed that outside disasters can also impact the safety of the plants. You don't really have safety concerns with green energy alternatives; their biggest problem is scale and reliability.