With business-as-usual, southwestern US likely to endure more pronounced drought

One of the strongest effects of climate change in the lower 48 US states is likely to be felt in the southwestern US. This is discussed in the IPCC report previewed on April 6, 2007, and previous articles in Science Magazine (by subscription only). Here are some temperature and precipitation forecast maps for the western US (for the next turn-of-the century) that were produced for the IPCC report by a climate modeler (Overpeck) at the University of Arizona in Tuscon, under the scenario of business-as-usual (i.e., no agressive change in current emissions trajectory).

ua_overpeck_bau_changes2.gif

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