A group from Arizona State University is working to cool down the Valley by planting trees in urban areas.

A tree trimmer died while on the job in Tempe on Sunday morning, according to the Tempe Fire Medical Rescue Department.

Firefighters used a ladder truck to reach the worker and remove the debris. Tempe Fire’s technical rescue team then helped ...

Add Yahoo as a preferred source to see more of our stories on Google. With the holiday season just around the corner, many people are deciding how to celebrate and decorate. If you're considering the ...

“Students can imagine themselves going in the future to the moon." TUCSON, Ariz. (KGUN) — If you drive or walk past the northside of the Flandrau Science Center and Planetarium, you’re going to notice ...

The contrast of the smooth, pale gray bark and bright orange leaves of aspen trees in the fall is a sight to behold in Arizona's higher elevations. But this beautiful display is under threat from an ...

It's an event you might not logically expect in the cactus country of Southern Arizona: a tree-climbing competition. Never mind logic. The Arizona Tree Climbing Championships are set for Jan. 15 in ...