Your Reporter Olivia Young specializes in coverage of Douglas County in Colorado. Share your story ideas with her by sending an email to yourreporter@cbs.com. As Colorado experiences its signature ...

Trees, especially pine trees, are in for challenging times. Although pine trees are relatively drought tolerant, ongoing drought, as we’ve experienced in Marin County for several years, has caused ...

Add Yahoo as a preferred source to see more of our stories on Google. In the Ancient Bristlecone Pine Forest, where some of the the world's oldest trees live, scientists are concerned about a possible ...

What do you get when you combine an architect, a farmer, an artistic mindset and a pile of thick bark? If you’re farmer Robert Petterson and architect Ulf Mejergren, you get Pine Bark Hut. The “farm ...

The emerald ash borer's larvae attack trees from within. Beech leaf disease from nematodes attack beech trees; Various fungal ...

For more than 20 years, we’ve been using pine bark mulch on our own gardens, while mulch fads came and went. Dyed red wood chips, cypress, dyed shredded rubber and dyed black wood chips have come into ...

California’s drought and bark-beetle infestation killed more than 129 million trees between 2012 and 2016 in the Sierra Nevada. But amid the devastation stood some survivors. At the time, UC Davis ...

Whitebark pine is a threatened tree species that provides ecological and cultural value across its range in the U.S. West and Canada. Scientists have sequenced its genome, presenting new opportunities ...

BISHOP, Calif. — Forest pathologist Martin MacKenzie strode forward on a narrow path through California’s mythic bristlecone pine forest in the White Mountains near the Nevada border, methodically ...