"Every other call, it's about El Niño." ...

To stop California's 6 million urban trees from knocking out power lines, crashing through houses, or lying across streets when they die, humans have to intervene. A handful of arborists and ...

UC Davis Professor Hugh Safford was hiking for pleasure in California’s High Sierra when he stumbled upon a new elevation record for the Jeffrey pine, which may now be the state’s highest-altitude ...

Californians watched in dismay this month as the York fire seared through Mojave National Preserve, igniting a delicate desert landscape that may never fully recover. The fire chewed through stands of ...

Add Yahoo as a preferred source to see more of our stories on Google. The Teakettle Experimental Forest within the Sierra National Forest is 80 miles east of Fresno, pictured in 2017. (U.S. Forest ...

Deep within the towering canopy of the California redwood forests, sunlight struggles to reach the ground. These forests are among the darkest on Earth because the immense height and density of the ...

Backcountry Press has announced the release of “California Trees,” a field guide by botanists and naturalists Matt Ritter and Michael Kauffmann. This book is more than just an identification manual — ...

When eight miniature trees disappeared from the Bonsai Garden at Lake Merritt in Oakland in mid-January, a sense of despair descended on the volunteer-run exhibit. The trees were living masterpieces, ...