Well, Uranium mining is real bad, as since it's so scarce and you need to refine the right rare isotope out of the ore, you need to dig a lot.
A bigger worry is its still limited; current tech at current (low) usage, it's estimated there's only 90 years left of uranium. Better tech will improve that, but unless we figure out something like pure thorium, nuclear won't power the world. (fwiw, current expirimental thorium still uses uranium to enrich the thorium. Still more efficient, but it's main draw is that it's safer).
Well, Uranium mining is real bad, as since it's so scarce and you need to refine the right rare isotope out of the ore, you need to dig a lot.
A bigger worry is its still limited; current tech at current (low) usage, it's estimated there's only 90 years left of uranium. Better tech will improve that, but unless we figure out something like pure thorium, nuclear won't power the world. (fwiw, current expirimental thorium still uses uranium to enrich the thorium. Still more efficient, but it's main draw is that it's safer).
I wonder how many years of power we could get by burning up all the plutonium in existing nuclear weapons