Earth’s oldest trees in climate-induced race up the tree line


(University of California – Davis) Bristlecone pine and limber pine trees in the Great Basin region of the western United States are like two very gnarled, old men in a slow-motion race up the mountaintop, and climate change is the starting gun, according to a study from the University of California, Davis. The study shows that the tree line has been steadily moving upslope over the past 50 years in the Great Basin.