A Colorado School of Mines study adds "when" to the perennial water questions of "how much" and "where" water is flowing.

The Colorado River is severely overtapped and its reservoirs are declining to critically low levels. Experts analyze what it ...

Geologists have solved the mystery of the disappearance from the geological record, millions of years ago, of one of North America's most important waterways: the Colorado River. A paper published in ...

Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...

Occurring every April, Earth Day is an opportunity to reflect on our planet’s health and reinvigorate initiatives that bring awareness and action to issues like fighting climate change and preventing ...

The Hoover Dam in the Black Canyon of the Colorado River is on the border between Nevada and Arizona. Credit: Rafael Ciaramicoli/iStock The California Gold Rush was in full swing in 1852 when ...

SALT LAKE CITY — Utah and surrounding states have agreed to release a massive amount of water from Flaming Gorge to prop up Lake Powell and the rest of the Colorado River system. On Tuesday, the Upper ...

Rain and melted snow from mountain forests in northern and eastern Arizona flow into the Verde River system and into ...

When the Space Shuttle Challenger exploded in 1986, Beth Knobel, a future TV news correspondent, was in graduate school.

Life on Earth: Attenborough’s Greatest Adventure is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire ...

Another severe wildfire season is forecast for the Western U.S. due to record-breaking heat and an abysmal snowpack.