The next big phase of the Klamath River Dam removal started this week. It's the largest dam removal in U.S. history and is expected to last through 2024.

A water treaty has survived three wars between India and Pakistan. Now the agreement is in trouble, but some say a new is treaty needed for both political and environmental reasons.

Long-deferred maintenance, a changing climate and the construction of homes, businesses and highways below previously remote dams are all contributing to the soaring numbers.

On a cold morning last March, Kenny Angel got a frantic knock on his door. Two workers from a utility company in northern Nebraska had come with a stark...

Here’s a strange fact about Georgia: the state has no naturally occurring large lakes – just some small pockets that fill up when it rains. What it does...