Pests are ravaging keystone species like ash, elm, and beech. But researchers are breeding the survivors into more resilient ...

A Phoenix tree trimmer died from his injuries after firefighters used chainsaws to cut away palm fronds and lower him from the tree.

The public has until May 19 to weigh in on a Trump administration plan that would leave many endangered species at much ...

Damage linked to the palm tree-killing coconut rhinoceros beetle has become more obvious in urban Hono ­lulu, according to city officials. Recent plantings at new privately owned building developments ...

Shape and symmetry help determine where a leaf lands — and if the tree it came from can recoup the leaf’s carbon as it decomposes.

I have a huge oak tree in our yard. Its roots are protruding above the ground. I’m concerned that someone might trip on them.

Trees offer shelter to all—humans, birds, animals alike. We must not turn them into enemies with excuses and justifications ...

Looking for more shade, color, or privacy for your backyard? These landscaping trees are sure to beautify your property.

Many of the Maine woods have been cut so hard that reshaping them for carbon storage will be neither quick nor easy.

For days, police say, Samuel Patrick Groft cruised through the streets of Los Angeles on his bicycle, single-handedly ...

Dogwood trees are well-behaved species but still need some tidying. Learn how to prune dogwood trees, when and why with this ...