A plastic bag that fights a beetle infestation on a western conifer is an emblem of how federal researchers are working to steel high-elevation pine forests in the West against the onslaught of climate change.
The Forest Service and scientists from other agencies are trying to figure out how to help high-altitude pines across the West, including this bristlecone pine in Colorado, survive the onslaught of climate change. Warmer temperatures have allowed native beetles to grow and feed on trees at a faster rate. Water deprivation and drought can also hurt them, and they can be crowded out by other tree species migrating to higher altitudes. Julie Kray/U.S. Forest Service Buy Photo