We do have the tools. International economic and military sanctions on regions that refuse to cooperate in cleanup and reform efforts, and international fundi

We do have the tools. International economic and military sanctions on regions that refuse to cooperate in cleanup and reform efforts, and international funding for those that do. Other rivers have been cleaned up before, the big 10 polluting rivers can be cleaned up too. This is not a technical problem, it's a political problem. When push comes to shove, our current political regimes seem to have little regard for the environment as a whole. Token gestures only placate people so they don't demand meaningful reform.