Contact: Daniel Stolte
University of Arizona
Caption: This Douglas-fir sample from the Southwest has annual tree rings dating back to the year 1527. The narrowing of the rings that formed from the 1560s through the 1590s indicates that the tree grew little during the 16th century megadrought.
Credit: Copyright Daniel Griffin.
Usage Restrictions: This image may only be used to illustrate a story about the research described in the release, Climate Change to Cripple Southwestern Forests. Photo credit must be given to Daniel Griffin.
Related news release: Climate change could cripple southwestern forests