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Dry conditions are the worst they’ve been in almost 20 years across the Colorado River watershed, which acts as the drinking and irrigation water supply for 40 million people in the American Southwest.

Increasingly bleak forecasts for the Colorado River have for the first time put into action elements of the 2019 upper basin drought contingency plan.

Record-breaking wildfires in 2020 turned huge swaths of Western forests into barren burn scars. Those forests store winter snowpack that millions of people rely on for drinking and irrigation water. But with such large and wide-reaching fires, the science on the short-term and long-term effects to the region’s water supplies isn’t well understood.

States in the Colorado River Basin are ready to begin negotiating policies to govern the critical Western water source.

Karen Snyder has never been afraid to use her voice. She learned that from the women who raised her on the Wind River Reservation in Wyoming. "I come...

Great Basin caves tell a story linking climate change to a “worst-case scenario” with potential impact on 56 million Western water users.

Reservoirs that store water along the Colorado River are projected to be less than half full later this year, potentially marking a historic low mark...

Pull out a map of the United States’ desert southwest and see if you can locate these rivers: Rio del Tizon, Rio San Rafael, or Rio Zanguananos. How...