Throughout history, rivers have been our foremost source of fresh water for both agriculture and individual consumption, but looming water scarcity threatens to cut global food production and cause conflict and unrest. In this visionary book, Fred Pearce takes readers around the world on a tour of the world's rivers to provide our most complete portrait yet of the growing global water crisis and its ramifications for us all. With vivid on-the-ground reporting, Pearce deftly weaves together the scientific, economic, and historic dimensions of the water crisis, showing us its complex origins--from waste to wrong-headed engineering projects to high-yield crop varieties that have saved developing countries from starvation but are now emptying their water reserves. Pearce argues that the solution to the growing worldwide water shortage is more efficiency and a new water ethic based on managing the water cycle for maximum social benefit rather than narrow self-interest.