I know they dried up alot of the creeks, streams and rivers with their fish repopulation plan of the 70s and 80s. They passed laws to air drop trees into the waterways to provide habitat. Turns out it backfired and they had to have these HUGE trees airlifted out again. In the meantime, trees that fell and decayed naturally were blocked from moving due to the changes these people made.
Now the only fish around those parts are stocked fish. It's ridiculous.
You can't play God and have things go smoothly. They have made a mess of things.