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10.01.12 News
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Climate Change Could Cripple Southwestern Forests

Combine the tree-ring growth record with historical information, climate records, and computer-model projections of future climate trends, and you get a grim picture for the future of trees in the southwestern United States. That's the word from a team of scientists from Los Alamos National Laboratory, the U.S. Geological Survey, the University of Arizona, and other partner organizations. If the Southwest is warmer and drier in the near future, widespread tree death is likely and would cause substantial changes in the distribution of forests and of species. Southwestern forests grow best when total winter precipitation is high combined with a summer and fall that aren't too hot and dry.
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