A friend mentioned a phrase I had never heard before — tree climbing. It sounded baffling. Climbing trees as a sport? Who ...

Students learn that they, too, can help communities care for trees safely and responsibly. City residents, politicians, planners, scientists and tree-care professionals ideally ne ...

Saying that a recent tree-climbing school was hands-on is a bit of an understatement. As an arboreal activity that requires a whole-body commitment, the course held Aug. 12-15 by Penn State Extension ...