It’s not just the lodgepole pines that are dying in the Colorado mountains. Thirteen percent of aspen trees in the state are now affected by Sudden Aspen Decline, which is caused by disease and ...

Those were not big cats plucked out of a tree Thursday afternoon by the Aspen fire department. A mother bear and two cubs that took up residence this week in a tree on an Aspen pedestrian mall were ...

It's 2026, and time to start wondering what to do with that Christmas tree in the living room that is rapidly drying and ...

When we walked with a colleague into an aspen forest near Madison, Wisconsin, in the early spring of 2021, we expected to finalize our plans for a research project on several species of insects that ...

A proposal to try to revive aspen stands across 375,000 acres of the White River National Forest has drawn criticism from environmentalists, endorsements from some local governments and concerns from ...

Aspen trees are getting a boost from wolves at Yellowstone National Park, new research suggests. For the first time in 80 years, baby aspens are growing tall and healthy in the northern part of the ...

To carve an aspen tree — to take a blade to the trunk for the sake of your initials, for example — is to do harm. Harm to a being with a life expectancy much like our own: 100 years, if we’re lucky.