You should thank the environmentalist too , they were the ones who caused this whole mess. They thought they had to save the wetlands and the creatures that live there, when they should have kept their nose out of it. The system that was in place to control the lake levels worked fine, but no they thought they were smarter than the people who put the original plan in place. Nature adapted to the lake levels just fine but they thought they had to fix something that wasn't broke.
Do we really have to make everything IDIOT PROOF ?