Reservoirs are nice, aren't they? Nice to look at, swim in, kayak on, walk around etc. Unless your house is going to be flooded, of course.
So I don't know what the objections were about. You can easily ignore them, and just as easily enjoy them. But they are hardly going to "destroy the environment".
That said, they would of course destroy "some" environment. I'm not aware of the specific objections in this case. So I'll leave an open mind until I do.