Nuclear, of course, has its own dirty issue in sequestering byproducts (discounting the occasional meltdown, which---thankfully---is still generally a localized problem relative to CO2 emission's global threat, although it's not very localized... Chernobyl threatened much of west Asia and Europe in the worst-case scenario which, thankfully, didn't materialize).

It's a little hard to weigh those costs vs. benefits, since nuclear byproduct sequestration is relatively cheap but the consequences of failure are relatively high (dirty bombs). On the whole, I'd peg the risk factors for solar and wind as lower, but I'd still prefer to see nuclear plants replace fossil fuel plants if other options aren't available.

This is a problem of means. We don't have infinite resources to spend. For instance Germany spent 300 billions euros on wind and solar power since 2000. They decided to stop using nuclear, and are still burning masses of coal, and are still quite far away from clean electricity.

Would they have invested 300 billions in nuclear, Germany would run on 100% CO2 neutral electricity today, with an hefty margin (arguably 200 billions would have been enough).

Then while everybody speaks about electricity, they conveniently forget that it represents only 20 to 25% of all of our energy needs. The remaining 75-80% for industry, agriculture and transports are almost 100% fossil-fueled...