Global drought may have changed less than thought

ScienceNews: Droughts shrivel crops, threaten communities, and wither ecosystems. Studies claim global warming is increasing drought worldwide, and may already have done so. But the standard method of assessing drought has exaggerated drying trends over the past 60 years, scientists report in the Nov. 14 Nature. The 2007 report of the Intergovernmental Panel on Climate Change concluded that “more intense and longer droughts have been observed over wider areas since the 1970s.” Its findings were largely based......

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