Poisoned Waters (Frontline PBS): More than three decades after the Clean Water Act, two iconic waterways—the great coastal estuaries Puget Sound and the Chesapeake Bay—are in perilous condition. With polluted runoff still flowing in from industry, agriculture, and massive suburban development, scientists fear contamination to the food chain and drinking water for millions of people. … More 15 Environmental Documentaries and Movies That Will Turn You Into an Environmentalist Tree Hugging Save the Ocean Warrior