Additional Evidence On The Bias In The IPCC WG1 Report On The Assessment Of Near-Surface Air Temperature Trends

As a further example of the selective use of papers by the IPCC WG1 Report, I summarize here the sequence of papers and comments on the role of land-use change on near-surface air temperature trends.

The original paper

Kalnay E., and M. Cai, 2003: Impact of urbanization and land-use change on climate. Nature, 423, 528-531

resulted in vigorous comments on their conclusions including two Comments published in response in Nature;

Trenberth, K.E., 2004: Rural land-use change and climate. Nature, 427, 213, doi:10.1038/427213a. doi:10.1175/JCLI3612.1.

Vose, R.S., T.R. Karl, D.R. Easterling, C.N. Williams, and M.J. Menne, 2004: Impact of land-use change on climate. Nature, 427, 213-21

The originnal Kalnay and Cai paper and the two Comment were reported on in Chapter 7 of the 2007 IPCC WG1 Report.

However, Cai and Kalnay responded to the Trenberth and Vose et al Comments in the same Nature issue, but their Reply WAS NOT Cited in the 2007 IPCC WG1 Report! This Reply is

Cai, Ming and Eugenia Kalnay: 2004 Climate (communication arising): Impact of land-use change on climate Nature 427, 214 (15 January 2004) | doi:10.1038/427214a

This is certainly not an example of presenting the diversity of published perspectives on this issue.

Moreover, there have been follow up peer reviewed papers on this issue which appeared in time for the 2007 IPCC Report. They were, however, ignored. These papers include:

Kalnay, E., M. Cai, H. Li, and J. Tobin, 2006: Estimation of the impact of land-surface forcings on temperature trends in eastern United States J. Geophys. Res., Vol. 111, No. D6, D06106.

Objective views on this sequence of events must conclude the Report is biased.

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