Lucas Suzano of Davey Tree Services pointed out the trees at Sevier Park that can either ease or exacerbate allergy symptoms.

An unassuming dogwood tree outside Camp David became the solution to a devastating disease. A University of Tennessee professor found it.

A Lehigh Valley high school student studied radon in schools. Some districts are taking action. Radon is an odorless, colorless gas that is a leading cause of lung cancer. This Lehigh Valley ...