All of them due too fossil energy. Hence the call to invest in already available renewable energy sources.
We don't need even more potential disasters.
> renewables are far more wasteful in terms of materials required
Nuclear energy needs uranium mines which by the way happen to be in countries that are, let's say, politically unstable.
The astronomical cost of nuclear waste management is killing any and all attempt to render the TCO of a nuclear plant in a good light, if done honestly.
> they inherently don't produce power constantly
Are you thinking of solar and wind? When we talk about renewable, we mean geothermal plants, biomass energy and what not. And of course water, wind and solar - the mixture is important so that we can smooth out spikes with those renewables which don't produce power constantly, just as you build multiple nuclear plants, because one plant doesn't produce power constantly.
The question is: Why should the money go into ramping up a very expensive technology with lots of risks, when we could invest in better, safer and cleaner tech?