The Three Gorges dam displaced an approximate 1.3 million people, is of questionable structural integrity because of rushed construction, has had a huge impact on its immediate environment and in the event of a breach endangers 400 million people. While that monstrosity is an outlier, in most instances the construction of a dam will displace a lot of people and carries a sizable risk of breach if the construction isn’t carried out properly. Should or shouldn’t hydroelectric be considered environmentally friendly?