Watch NATURAL RESOURCES DEFENCE COUNCIL

Carbon dioxide pollution is the primary cause of global warming, but it also is making ocean water more acidic. This phenomenon, known as ocean acidification, may soon challenge the survival of thousands of marine species.

Gulf Coast residents share personal stories of their experiences living through America's worst oil spill catastrophe.

This Discovery Impact film examines the little-known problem of underwater noise and its destructive consequences. This new threat afflicts whales, sharks and dolphins, and dedicated teams are working desperately to try to save them.