The bill will allow farmers to exchange land and water rights with urban developers to decrease water use and increase ...

The Southwest and Rocky Mountain states are reviewing a plan that could split Colorado River water based on actual flows, not ...

An invasion of smallmouth bass from the Great Lakes region is spreading to new areas of the Colorado River in Arizona. The bass have already thwarted efforts to save threatened native ...

States that use Colorado River water need to agree on new rules for sharing it by 2026. If they don't, they will likely end ...

Arizona is tussling with other states over how much of the Colorado River it should receive. But how will Arizonans divide ...

Ted Cooke helped Arizona and the Central Arizona Project strike previous deals on the Colorado River. Now he's tasked with ...

State water leaders appear to be coalescing behind a new proposal for sharing the Colorado River after talks were stuck in a ...

Central Arizona could face 'critical levels' on the Colorado River, and an ASU researcher says cities need ... Want more stories like this? Sign up for AZ Climate, The Republic's free weekly ...

Preparing for a fight: Hobbs says Arizona will defend its Colorado River water, wants other states to accept cuts ... Want more stories about water? Sign up for AZ Climate, The Republic's free weekly ...

The Colorado River is a critical source of water for Arizona, providing 36% of the state’s water ... Interested in stories about water? Sign up for AZ Climate, The Republic's free weekly environment ...

After trying and failing for more than two decades to pump ancient groundwater from beneath the Mojave Desert and sell it to ...

The Colorado River, which provides 40% of water for Phoenix, along with most of Arizona’s largest cities, is experiencing low flows unprecedented in U.S. history.