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 ...

Sunday is forecast to be one of the coolest days of the week, with a high of 101 degrees in Phoenix. This marks a significant ...

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

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." ...