Thursday, 25 February 2010

Update on Global Drought Patterns (IPCC Take Note)

World Climate Report
"..We saw an interesting sentence in their abstract as Sheffield et al. wrote “Globally, the mid-1950s showed the highest drought activity and the mid-1970s to mid-1980s the lowest activity.” That does not seem consistent with the story coming from the IPCC. ...Their results seem completely at odds with the conclusions of the IPCC. Sheffield et al. note with respect to global and continental droughts “The longest duration drought was 49 months (4 yr) in Asia from 1984 to 1988, closely followed by the 1950–53 North American drought (44 months). The most spatially extensive was the African drought of the early 1980s, which reached its peak extent in April 1983 when it covered over 11 million square kilometers.” Their time series plot for the globe and for various continents shows no upward trend whatsoever."

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