The by now miniscule risk of meltdown is not the only downside to nuclear power compared to renewables.

There's the fact that a nuclear power plant takes a decade or more to build and make operational and we need to replace fossil fuel energy production NOW. In comparison, gigantic solar arrays and wind turbine parks can be ready in a matter of months.

Then there's the nuclear waste. There's been discovered one truly forever safeplace to store it in the world, deep down into a mountain in Finland (afair, could be Norway). Even if we (unreasonably) assume that it can all fit there, transporting all the radioactive waste of a world reliant on nuclear energy to Finland would be an environmentally ruinous nightmare.

Lastly, nuclear reactors need cool water to function efficiently and safely. Global warming, the very thing proponents say they're the best solution for, is making nuclear plants less effective and less safe.

In conclusion, renewables are by far the best solution, not nuclear energy.