During a drought, thirsty mountain forests can rob downstream trees, cities, and wildlife of necessary water, a new study shows.

Pine tree needles are a great way to monitor the proliferation of PFAS over time. "This is... applicable to sites all over the world."

A new study puts tangible numbers to the cooling effects of dotting pasturelands in tropical regions with trees.

There are more species of tree on Earth than we thought, researchers estimate. And a good number of them haven't even been discovered yet.

"The growth declines we're forecasting will mean less uptake of atmospheric carbon dioxide in the future by Arizona's forests."

A tiny, non-stinging wasp species is the first to appear in scientific literature alongside its fully sequenced genome.

Scientists have known about the relationship between trees and fungi for a long time. But new research clarifies just how important it really is.

To accurately predict species distribution and risk of extinction, models must include more than just climate, researchers say.

Strategic groves of certain "super trees" can make cities more livable, say researchers. Here are the 17 best species to plant.

When you head out to get your Christmas tree, it may seem like the Grinch got there first. But supply chain issues may explain the lack of seasonal cheer.