Land usage is also a huge concern with hydro power. Pumped hydro storage means permanently flooding an area to create the reservoir, which carries many above and beyond just the destruction of whatever was there before. The flooded land has vegetation on it, which is now decaying under water. This can release all sorts of unpleasantness, most notably mercury.

[–] PeriodicallyPedantic@lemmy.ca 4 points 3 months ago

I agree it absolutely has problems and I hope we come up with a better solution in the near future.

But it's currently the lesser evil. Even though nuclear plants don't need a lot of fuel, getting that fuel is still typically more damaging than creating a water reservoir, or using an existing natural reservoir.