Thursday, February 15, 2007

Error Checking on SPM Begins

Roger Pielke, Sr. of Climate Science, found four flat-out wrong statements in the IPCC's Statement for Policymakers, which shows either cherry-picking of data, or just plain wrongness. The first is that snow coverage in both hemispheres has decreased, when they have increased. The second is that the average ocean temperature has increased since 1961, but ignores the 20 percent loss of that heat in the last two years. The third is that atmospheric vapor content has increased during the last 25 years, consistent with the average increase of atmospheric temperature, but global average precipitation records during the same time show no noticeable increase or decrease consistent with this "added" water vapor. And fourth, is that mid-latitude westerly winds have gained in strength, which is a gauge of average temperature increase in the mid-latitudes, however, a corresponding warming of the arctic troposphere has not been reported for these westerly gains. Incidently, Gavin Schmidt, one of the main koolaid drinking climate modelers at RealClimate, shows up in the comments, only to be swatted down by Roger Pielke. That was enjoyable.

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