Scientists graded every river and stream in the contiguous United States, flagging specific repairs each one needs to support aquatic life.

Add Yahoo as a preferred source to see more of our stories on Google. The nearly 3 million rivers that weave across the world are experiencing rapid and surprising changes, with potentially drastic ...

WWF's flagship report calls for transformation in the way rivers are valued and managed to safeguard the diverse values of healthy rivers to people and nature. The Valuing Rivers report outlines how ...

When a prairie river carries more water in one year than another, the obvious place to look for an explanation is the sky. A ...

Changes in river chemistry in the northwestern North American Arctic reflect increased acid rock drainage associated with permafrost thaw, an unexpected consequence of Arctic warming.