Hurricane Helene and recent storms have taken a toll on the tree that stands guard over columnist Helen Baldwin's late son's resting spot.

In response to warmer temperatures, mountain pine beetles start their flight season more than a month earlier than historically reported, and fly more than twice as long. When adult beetles emerge ...

From valley bottoms all the way to the tree line, nearly every single pine has been killed by an enemy smaller than a thumbtack: the mountain pine beetle. Tour British Columbia, and the scale of ...

The tree is primarily threatened by an introduced fungal pathogen known as white pine blister rust. It is increasingly threatened by climate change, which is leading to increased fires and mountain ...

A thriving pine tree is a thing of beauty ... Depending on where you live in North America, this is the work of mountain, western, or southern pine beetles. These highly destructive bugs primarily ...

At 7 am on Feb 28, as the first group of tourists arrived at the peaks in the Huangshan Mountain Scenic Area, Hu Xiaochun, a ...