beetle-killed tree News
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Climate shift `killing US trees`, according to new study
Tree death rates have more than doubled over the last few decades in old-growth forests of the western United States, and the most probable cause of the worrisome trend is regional warming, according to a U.S. Geological Survey-led (USGS) study published in Science on January 23. The study found that the increase in dying trees has been pervasive. Tree death rates have increased across a wide ...
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