More than 15 million tourists from around the globe travel to California each year to visit its world-famous theme parks, ...

A professor's casual hike in the High Sierra turned into a new elevation record for California's highest tree, the Jeffrey pine, which wasn't formerly known to grow at extreme elevations.

The Jeffrey pine, one of the iconic trees of the Sierra Nevada, appears to have eclipsed other pines to become the ...

People are ready to put down roots. So here’s a look at eight trees that are — for better or worse — popularly planted in ...

President Donald Trump has signed an executive order aimed at rapidly expanding timber production in national forests across ...

Entering Lacy Park on a recent Saturday felt like I was getting away with something.  Typically, my Los Angeles ZIP code ...

UC Davis Professor Hugh Safford was hiking for pleasure in California's High Sierra when he stumbled upon a new elevation ...

Watch as a skilled professional effortlessly cuts through massive acacia trees with the power and precision of a chainsaw. This process showcases the technique and care needed to handle large trees, ...

Thoughts in the Roots, this show by lauded Italian artist Guiseppe Penone, spills into Hyde Park with two dazzling tree ...

Whether your outdoor space is already primed for summer or you're just beginning to bring things back to life–here’s ...

The Tamaulipan thorn forest once covered 1 million acres on both sides of the bor. Restoring even a fraction of it could help ...

South Africa is facing an escalating ecological crisis – a tiny invasive beetle from Vietnam is killing off trees in urban and natural forests. More than 7,000 trees have been affected by the ...