Dan Driscoll spent 20 years restoring abused and forgotten corridors along Boston’s Charles River, creating habitat for wildlife and access for people. Each step was a lonely battle against short-sighted politicians, nimbyism and red tape. Now Dan’s about to do it all over again, this time with the Mystic River. Reporter Rachel Leventhal visits Dan in Boston to find out why.

» Read Riding the Wild Charles, from OnEarth's Winter 2008 issue