_:genid1 "Copyright protected. Obtain permission from the original figure source."^^ . "linear-trends-palmer-drought-severity-index-1948-2002" . "Linear Trends in the Palmer Drought Serverity Index (PDSI) from 1948 to 2002"^^ . "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)."^^ . _:genid1 . . . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . _:genid4 . _:genid4 . _:genid4 . _:genid4 . _:genid4 .