Earlier quoted context omitted.
> Historically, hydro has done harm to the ecosystems where they are installed. This is quite often overlooked and brushed aside. There is no single method of generating electricity without downsides.
We’ve made dams long before we knew about electricity. At which point tacking hydropower to a dam that would exist either way has basically zero environmental impact. Pure hydropower dams definitely do have significant environmental impact.
Maybe your just okay and willing to accept that kind of change. That's fine, just as some people are okay with the risk of nuclear, the use of land for solar/wind. But to just flat out deny that it has impact is just dishonest discourse at best