Replanting forests can help cool the planet even more than some scientists once believed, especially in the tropics. But even ...

A robot the size and shape of a square kitchen table wheels over a row of seedlings. It scans the ground with camera "eyes," ...

A new study claims that trees and the way their leaves change colors could act as natural volcano warnings as underground ...

Across the western U.S., wildfires are becoming larger and more severe—and even trees that initially survive are dying in ...

While Massachusetts has plenty of fantastic trees to look at this time of year, many of the state's trees are full of history ...

Sunshine made the planting of four new trees at Evergreen Cemetery an enthusiastic event at noon Monday, May 19, as students and community supporters gathered to celebrate Arbor Day in Juneau’s newly ...

Tree lovers across the county are invited to nominate what they believe is the county’s largest White Pine in the 10th annual ...

Looking to create a more secluded outdoor space? These are the trees to avoid that won't actually help screen your garden ...

Volunteers are planting grasses and trees at Barrios Unidos Park, which is in one of Phoenix’s most heat-stressed neighborhoods.

Climate change threatens to kill off trees when we need them more than ever. To prevent that, the city and the public need to ...

Elm trees have leaves that are doubly toothed around the margins and are usually asymmetrical at the base. They grow in an alternating pattern along the stem. Some elm leaves are smooth on one ...