The Colorado River Basin which supplies water to seven U.S. states is facing "severe water shortages," scientists warn.

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

Arizona Game and Fish biologists are relocating beavers that otherwise are a nuisance in their current home to a riparian habitat on the San Pedro River. In their new home, the beavers can ...

In fact, new research in the journal Restoration Ecology details how scientists have unlocked a breakthrough in their work to save the Santa Cruz River, which runs 180 miles through Arizona and ...

Arizona has taken cuts to its Colorado River water since 2022. But a set of agreements among Arizona’s cities, farms and tribes that share the burden of those shortages expires in 2026.