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Showing posts from December, 2012

ZHOU AND TUNG

In a recent posting I said I would be commenting on a paper by Zhou and Tung (Zhou, J., and K. Tung, 2012: Deducing Multi-decadal Anthropogenic Global Warming Trends Using Multiple Regression Analysis. J. Atmos. Sci.doi:10.1175/JAS-D-12-0208.1, in press.) When I came across this paper I had mixed feelings. The paper says very similar things to those have I have been saying since January 2012: that the underlying rate of temperature increase is less than IPCC models assume, due to the influence of the Atlantic Multidecadal Oscillation (AMO). I was pleased to get further corroboration in a peer reviewed paper. On the other hand I was peeved as a paper I submitted earlier this year was not accepted. Their approach is similar to that of Foster and Rahmstorf. Forster and Rahmstorf developed a multiple linear regression model using total solar radiation, aerosols, ENSO and a linear trend as independent variables and 5 alternate temperature records as the dependent variable. The period