For years, water managers have been puzzled as the Colorado River kept delivering less water than expected—even when snowpack ...

Advocates for the dam have argued the Blydenburgh pond had been a community hub that existed for more than 200 years before a ...

Geologists have solved the mystery of the disappearance from the geological record, millions of years ago, of one of North ...

Rivers around the United States are under growing strain from pollution, development and extreme weather, according to ...