Republicans in the Arizona Legislature say they're working to keep gas prices down. The party, which holds majorities in the Senate and House, is considering legislation that would allow Maricopa ...

U.S. Senator Mark Kelly met with new Environmental Protection Agency administrator Lee Zeldin in Phoenix as part of a ...

The EPA's decision on the Valley's ozone nonattainment issue could have big impacts on public health and the local economy.

A pilot is alright after an engine malfunction caused her to make an emergency landing in a field near Flagstaff today.

Arizona’s air quality and specifically Maricopa County’s pollution problems were the focus of a discussion between Arizona ...

The Phoenix area's long-standing ozone pollution issues could have serious impacts on local economic competitiveness and ...

Cook's appointment comes as the state and region grapple with worsening climate issues such as extreme heat, devastating ...