In the image, shared from orbit, the Amazon appears almost like a living organism, its vast network of tributaries branching ...

A first-of-its-kind project seeking to restore river ecosystems along 39 miles of the Lower Mississippi River has federal approval to move forward — if it can secure a slice of the federal bankroll.

Climate change is starving the Arctic Ocean of essential nutrients, with the region's six largest rivers now delivering far less of the type of nitrogen that marine ecosystems need to survive, ...