Scientist finds Jeffrey pine trees at record mountain heights, suggesting climate-driven shifts in Sierra Nevada.

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

A peak in the middle background is Needham Mountain, where another Jeffrey pine was observed at very high elevation, underlining that this is not simply an anomaly on Mount Kaweah. (Hugh Safford, UC ...

Bockino estimates she, Diamond and the Whitebark Warriors have replanted nearly 5,000 trees in the past three years in the ...

The mountains (such as the highest ... and blazing sunshine, but some trees specialise in these conditions. Some, like the Scots pine, have become iconic; others, like the willows, are less ...

Pine trees, like oaks and magnolias ... Its proximity to the Appalachian Mountains and Atlantic Ocean, its slightly sub-tropical climate and its relative proximity to the Caribbean and ...

Pest-infested trees may appear in shades of brown, red or gray, according to the report. Each region in Colorado faces a different threat. The report found that the mountain pine beetle and ...

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.