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

As Arizona continues talks with six other states on the Colorado River over how to share future shortages, in-state water users are starting to talk about how they will deal with supply cuts ...

The simple solution has never been rewriting the interstate compact, as California has always wanted to do, but simply to distribute the water by the existing percentages — based on the river’s actual ...

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

The seven states that share the Colorado River are floating a new concept for how water could be shared in the future, marking forward progress after a long standoff between the Upper Basin and Lower ...

The Western U.S. faces severe, persistent drought, with intense competition for water resources in areas like the Colorado ...

People around the U.S. will gather July 17 to protest the Trump administration's recent policies. What to know and how to attend in metro Phoenix.

There will never be another standalone, traditional mall built in this country,” said David Larcher, CEO of shopping-center owner/developer Vestar.

The largest data centers can guzzle millions of gallons of fresh water a day. Roughly 40% are located in the most water-stressed areas of the country, Business Insider found.

Flagstaff will host a PBS documentary screening on the Colorado River's significance, featuring local scientists and the challenges impacting the region.

The I-10 Wild Horse Pass Corridor Project aims to alleviate traffic flow on the sole freeway connecting Arizona's largest ...