In The ripple effect : the fate of freshwater in the twenty-first century, Alex Prud'homme explores how people in the U.S. and around the world use and abuse water, and how our actions impact the earth's limited water supply.

Steve Scarborough, one of the founders of Dagger Canoe Company, discusses the book and his views on the problem of water quality. Scarborough has been active in river and water issues for 40 years. He is a former board member of the American Canoe Association and now sits on the board of Conservation Fisheries. He is working on a project to establish conservation easements on White's Creek Gorge in Rhea and Roane counties. (Recorded January 18, 2012)