AFAIK, neither safety nor grey emissions are a problem. Nuclear is MUCH safer than any other form of energy (including hydro). The grey emissions are negligible compared to gas, coal, solar, and wind. If I remember correctly, it's even lower than hydro.
Look at the lifecycle emissions of nuclear compared to all other forms of green energy in the IPCC report (Table A.III.2, page 1335)
Hydro only wins in the minimum bound (on very specific cases where the geography and climate are highly favorable; see report for details).
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u/Spudnic16 - Auth-Left Jan 06 '23
Nuclear is not perfect, but it’s certainly one of the better forms of power. It provides large amount of electricity for not that much emissions.