RiverkeeperBy: Nancy F. Castaldo Series: Books for a Better Earth Dive headfirst into the history of environmental activism in the Hudson River watershed and learn how you can help organizations like Riverkeeper protect clean water around the globe! Every inch of the United States is in a rivers watershed. But in 1966, one of our most important watersheds was dying. Dead fish washed up on the Hudson Rivers shores, and the once clear water reeked of oil. With too