A new government report says already scarce water supplies in the Western United States are likely to dwindle further as a result of climate change, exacerbating problems for millions of water users in the West.

The Arizona Senate has given preliminary approval of a bill that would limit state government spending.

A small detail in the state’s medical marijuana rules might allow unregulated hemp production. The perceived loophole, one hopeful hemp farmer says, was created by the Health Department’s lack of input from pot botany experts during the department’s rulemaking process.

No doubt to his dismay, former Maricopa County Attorney Andrew Thomas is shining a high-beam light on Arizona’s new system of disciplining attorneys.

The system, which took effect Jan. 1, eliminated steps from the process and added more laymen to the decision-making, and is so new that Thomas is only the second lawyer to be strapped with a complaint.

Eighty years ago this month, two intrepid would-be entrepreneurs spent a harrowing 12 days traveling upstream on the ice-choked Colorado River from Lee’s Ferry to Rainbow Bridge, battling frigid waters and the elements in a wooden boat they had found while testing their own steel boat.

Attorneys for 20 states fighting the new federal health care law told a judge Thursday it will expand the government's powers in dangerous and unintended ways.

Officials with the Coconino National Forest are rewriting a 23-year-old blueprint for the forest and attempting to address some big problems, like climate change and water pollution.

Cities in eastern metro Phoenix are working on local laws to regulate the locations of medical marijuana dispensaries.

The drought has sent Lake Mead to a low not seen in a lifetime.

Colorado Republicans say they want to introduce a bill next year that will crack down on illegal immigration and they're looking to Arizona lawmakers for advice.