The renewable energy disaster that was far deadlier than Chernobyl (bigthink.com)

[flagged]

The article was too short. My question is: what makes the land uninhabitable after the dam collapse? Nuclear waste leaves radiation making the area unsafe for life, for many, many years, but what about a dam collapse makes an area uninhabitable?

Better if the article stuck to providing info and omit "communism bad! nuclear good!" sermon.