Even Gila monsters need a chance to cool off from Arizona's brutal summer heat. One of Arizona's famous venomous lizards was ...

Flagstaff, Arizona, offers four seasons and mountain beauty, but at a high price. Learn what makes this town both a dream ...

DENVER (AP) — The husband of Colorado woman Suzanne Morphew, whose remains were discovered over three years after she was ...

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

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Homeowners in some states have more exposure to natural disasters than others. Find out whether your state is one of the most ...

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As temperatures climb to 115°F, the Arizona Heat Standards Coalition and allies call on state officials to adopt enforceable protections for workers facing extreme heat. By Stasia DeMarco Jun 18 ...

The API failed to deliver the resource. As extreme heat grips Arizona, fire crews up north report rising rescues, warning visitors that escaping Phoenix doesn’t mean escaping the danger.

Another, introduced by Rep. Yassamin Ansari, D-Arizona, in the House and Sen. Mark Kelly, D-Arizona, in the Senate, would commission a national study on the economic impacts of extreme heat.

Arizona is now home to 70 such champion trees, including nine in Pima County. Tap or click any tree in the map below.