Increasingly Severe Droughts Could Transform U.S. Forests, Study Says

Yale Environment 360: Severe drought conditions in the southwestern U.S. in recent years could become normal in the years to come, a shift that could trigger increased tree mortality and ultimately transform the region’s forests, a new study says. In an analysis of tree-ring data from conifer trees dating back to A.D. 1000, a team of scientists concluded that while the region endured several “mega-droughts” over the last 1,000 years, the long-term drought that began in the late-1990s could end up being the worst yet and......

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