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This graph shows depiction of linear trends in the PDSI.

depiction of linear trends in the PDSI


This depiction of linear trends in the Palmer Drought Severe Index (PDSI) from 1948 to 2002 shows drying (reds and pinks) across much of Canada, Europe, Asia, and Africa and moistening (green) across the United States, Argentina, Scandinavia, and western Australia.

Credit: Illustration courtesy A. Dai and the American Meteorological Society

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Related story: Scientists Find Climate Change is Major Factor in Drought's Growing Reach