Negotiations over how to stabilize the shrinking Colorado River are so deadlocked that one of the seven state officials ...

Farms pay less than cities for river water, but both groups pay low wholesale prices to access a water supply that's slowly ...

These reductions are real. In 2023, Arizona, California and Nevada used only 5.8 million acre-feet of Colorado River water – their lowest combined annual consumption since 1983. The Lower Basin’s ...

Farms and cities use so much of the Colorado River's water that little remains for the river's own ecosystem. Will ...

Colorado River water is not priced at rates that accurately reflect its scarcity, incentivizing inefficiency and overconsumption as climate change and overuse threaten the vital waterway for 40 ...

The president exempted a copper smelter in Arizona from air-quality rules. An E.P.A. official guided the company that sought ...

The community remembered those lost to devastating diseases, likely as a result of severe water contamination in the city’s ...

Pima County is set to sell over 400 acres of land to the National Park Service, expanding Saguaro National Park. The Pima ...

TEMPE, Ariz. (AP) Noah Fifita and Arizona's revamped defense produced the perfect capper to a turnaround season. Fifita threw for 286 yards and a touchdown, Arizona's defense forced five turnovers and ...

Long before World War II, the U.S. Army rounded up Native Americans onto reservations — drawing in their new boundaries. And ...

Governor Katie Hobbs announced Thursday that her office has awarded $15.6 million to four grid-resilience projects across Arizona that will directly benefit customers in the Tucson region.