The Arbor Day Foundation has created an inexpensive tool for helping people develop a greater appreciation for trees. The “What Tree is That?” book is an easy-to-use identification guide featuring ...

Identifying trees in winter doesn’t stop at bark and buds. In this second part, we explore additional features and techniques that make winter tree ID easier, from branching patterns to habitat clues.

Trees are known for capturing carbon dioxide as they grow. But they also soak up other gases implicated in climate change through microbes in their bark. The tree bark microbes feast on hydrogen, ...