A new study shows that tiny microbes living in and around oak trees may help them survive drought, poor soil, and disease.

The world's forests are changing silently, and scientists are warning about the loss of key tree species and lack of biodiversity.

NEW YORK -- It's a tough time to be a tree. For this Earth Day, National Geographic has focused its lens on humanity's relationship with the world's 3 trillion trees and 10 billion acres of forest, ...

From towering coastal redwoods to dinosaur-era Wollemi pines and firs that make the perfect Christmas trees, even our most revered woody plants are in grave danger. But the loss of these species isn't ...

Carbon dioxide levels in the atmosphere are steadily rising because of human activities, which is wreaking havoc on the environment. Some of that excess carbon can also be stored in the so-called ...

New study estimates how many trees there are on Earth. — -- How many trees are there on Earth? It's the ultimate estimation game, but a group of Yale researchers believe they have arrived at the ...

On a windswept plateau high above the Arabian Sea, Sena Keybani cradles a sapling that barely reaches her ankle. The young plant, protected by a makeshift fence of wood and wire, is a kind of dragon’s ...

It might seem as if Earth Day 2025 — and, really, at least the next three after that — will be particularly daunting, more call to the difficult work ahead than recognition of past accomplishments and ...

An IRS officer in Delhi has created the School of Trees, a free, community-led initiative where children learn environmental ...