GLENWOOD SPRINGS ” Below-zero weather earlier this month was not enough to wipe out bark beetles that have killed millions of trees in the mountains. “On a local scale it might affect small ...

This month's early cold snap may have killed a few mountain pine beetles, but probably not many, according to a scientist with the U.S. Forest Service. Unseasonably cold weather sometimes is more ...

When the first few sycamores began dying in UC Irvine's Aldrich Park in late 2014, the victims numbered in the dozens. But over the next several months, hundreds of cottonwoods, native willows, ...