What is that “toxic timebomb(sic)” about?

Where is your article link? This is all I could find, which clearly is more optimistic: https://www.yahoo.com/news/deer-boar-could-roam-forests-111101014.html

I personally think that it should be rebuilt. I'm not an expert and perhaps I'm wrong, but I feel like it's simply too good of an energy source and Ukraine will need cheap energy to rebuild.

There is a good Patagonia short film about dam removal if you want to burn an hour or so. DamNation