Add Yahoo as a preferred source to see more of our stories on Google. The U.S. Forest Service issues permits for people to cut their own Christmas trees in Arizona national forests. The 2022 holiday ...

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

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 ...

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 ...

PHOENIX — Amid the Arizona heat, researchers are finding Fremont Cottonwood trees can cool themselves down, but their survival depends on consistent water access. The trees essentially sweat - using ...