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Updated 15 December 2006

OUR CHANGING PLANET
The U.S. Climate Change Science Program
for Fiscal Year 2007

A Report by the Climate Change Science Program and
The Subcommittee on Global Change Research
A Supplement to the President's Fiscal Year 2007 Budget

Figure 15.  Linear Trends in the Palmer Drought Severity Index (PDSI) from 1948 to 2002.

OCP07-Fig-15

These data products show 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: A. Dai, K.E. Trenberth, and T. Qian, National Center for Atmospheric Research (reproduced from Journal of Hydrometeorology with permission from the American Meteorological Society).

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