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News Release 09-223
Growth Spurt in Tree Rings Prompts Questions About Climate Change
Recent growth in the rings of bristlecone pines in the western U.S. points to warmer temperatures at treeline
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Explore the desolate treeline environment in this audio slideshow.
Credit: Lisa Raffensperger, National Science Foundation
The researchers studied bristlecone pines (Pinus longaeva) at three sites in California and Nevada, close to the upper elevation limit of tree growth.
Credit: Matthew Salzer, University of Arizona
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The researchers' findings point to warmer temperatures as a cause of the recent surge in growth for bristlecone pines.
Credit: Matthew Salzer, University of Arizona
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