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 ...

Looking down the street at the scrawny Mesquite and Palo Verde trees, it’s hard to imagine that magnificent trees exist in our state. SaddleBrooke Nature Club’s speaker has documented some 200 ...

Q: I have three Arizona cypress trees on the west side of my backyard in the Northeast Heights here in Albuquerque. The bark on all three is peeling away, which I know is normal for an Arizona cypress ...

If your neigbor's tree is growing into your yard, you do have certain legal rights in Arizona. Here's what you can and can't do in these cases.

Among many other benefits, planting trees around your home really can save energy, according to the National Forest Service. The NFS said shade from two 25-foot tall trees on the west side of the ...

After a record low winter run-off, some water experts are now calling this Arizona's worst mega-drought in recorded history, even when compared to tree-ring data that goes all the way back to 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 ...

In situ studies of isoprene emission in an experimental poplar plantation near Tucson, Arizona. This was the first year of the study showing establishment of the trees. Trees don’t just emit oxygen as ...