When you admire a towering oak or a vibrant maple in your backyard, you’re only seeing half the picture. Beneath the surface ...

It's hard to overstate the importance of trees. Their debut more than 300 million years ago was a turning point for Earth, helping transform its surface into a bustling utopia for land animals. Trees ...

Melissa Breyer was Treehugger’s senior editorial director before moving to Martha Stewart. Her writing and photography have been featured in The New York Times, The Guardian, National Geographic, ...