From Scientific American news of the week:
"A research team, led by a group at Columbia University's Lamont-Doherty Earth Observatory (LDEO) in Palisades, N.Y., reveal in this week's Science that southwestern North America will likely be saddled with increasingly arid conditions during the next century. This drying effect, the researchers say, is directly related to man-made climate change and will demand new methods for managing water resources in the region. They based their findings on 19 climate models, all of which contributed to the Intergovernmental Panel on Climate Change's (IPCC) Fourth Assessment Report released in Paris in early February."
Read the Scientific American summary.
Read the paper abstract in Science Express Reports :
. Richard Seager, Mingfang Ting, Isaac Held, et al.
Published online 9 April 2007 [DOI: 10.1126/science.1139601]