Climate Change Science Program: Difference between revisions

Revision as of 18:29, 26 August 2007

Revision as of 18:59, 26 August 2007

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The report also noted that:

:"all current atmospheric data sets now show global-average warming that is similar to the surface warming. While these data are consistent with the results from climate models at the global scale, discrepancies in the tropics remain to be resolved."<ref>[http://www.climatescience.gov/Library/sap/sap1-1/finalreport/sap1-1-final-execsum.pdf Executive Summary of CCSP SAP 1.1]</ref>

A discrepancy in the text was pointed out in a subsequent discussion between climate scientists. References 6 and 7 refer to the Press release and Executive Summary written by Tom Wigley, lead author, respectively. Inexplicably, these misrepresent the plain results of the report itself, namely that there is a clear discrepancy in the rate of low-latitude temperature increase for the surface compared with higher levels in the atmosphere – which contradicts the expected results from greenhouse models. This can be easily checked by comparing Fig. 5.7E of the report with Fig. 1.3F; the discrepancy is most clearly shown also in Fig. 5.4G. The inevitable conclusion is that the human greenhouse contribution to current warming is of minor importance compared to natural processes.

===SAP 2.1===