We're seeing below-normal temps this weekend, the National Weather Service in Phoenix said on June 22. The low on Sunday was ...

Mycorrhizal fungi are vital to ecosystems around the world, but remain largely understudied, especially in arid regions. They ...

A relentless and historic heatwave is gripping the American Southwest, forcing authorities in Arizona, Nevada, and California ...

Officials have told residents in three states to stay indoors this week due to severe air quality alerts and record-breaking heat. Warnings issued by both the Environmental Protection Agency (EPA) and ...

Disney this week unveiled a sneak peek of what its flagship theme park's expansion will look like. Plus, everything you need ...

A growing wildfire burning on the western side of Navajo Mountain is raising alarm among residents and officials, as shifting ...

Read here for an analysis of the investing tradeoff between Pinnacle West's growth potential and risks vs. Avista's stability ...

Areas under level 3 "Go Now" evacuation orders included: Rowena Ferry Road east to River Road; Seven Mile Hill Road to Mountain View Drive, south to Chenowith Creek Road and Browns Creek Road east to ...

Senate Republicans want to sell the land to build more housing in the West, but the idea is contentious even within their own ...

Air quality in western and central North Dakota reached "very unhealthy" levels early Wednesday as smoke from Canadian ...

Watch Duty, an emergency notification system, helps keep those impacted by wildfires informed. Here's how to get it free.

Air quality alerts are still in place on Tuesday, warning that children may experience "breathing difficulties." ...