Hydro also destroys ecosystems since it requires damming rivers and creating a reservoir. It's also quite risky, since when poorly maintained a structural collapse can kill thousands of people downstream. This has happened in China and California came really close to creating a man-made disaster only a few years ago.
Hydro also creates ecosystems, and is capable of supporting existing ones - see California, millions of feet of water were used from reservoirs to ensure sturgeon spawning grounds weren’t dry during a drought.
