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In our example on temperatures in the tropical troposphere, on data ending in 1999 we find the trend differences between models and observations are only marginally significant, partially confirming the view of Santer et al. (2008) against Douglass et al. (2007). The observed temperature trends themselves are statistically insignificant. Over the 1979 to 2009 interval, in the LT layer, observed trends are jointly significant and three of four data sets have individually significant trends. In the MT layer two of four data sets have individually significant trends and the trends are jointly insignificant or marginal depending on the test used. Over the interval 1979 to 2009, model-projected temperature trends are two to four times larger than observed trends in both the lower and mid-troposphere and the differences are statistically significant at the 99% level.
Our methods assume trends are linear. We found no evidence for nonlinearity on the observed data, but some on modeled data in the MT. Also, the fact that the results are sensitive to the end date suggests that they might also be sensitive to the start date. Since the satellite data are unavailable prior to 1979 we cannot extend these series earlier. Interpretation of trend comparisons should therefore make reference to the time period analysed, which, ideally, should have some intrinsic interest. In this case the 1979-2009 interval is a 31-year span during which the upward trend in surface data strongly suggests a climate-scale warming process. As noted in the studies cited in the introduction, comparing models to observations in the tropical troposphere is an important aspect of testing explanations of the origins of surface warming.
Gore concedes, National Wildlife Federation calls skeptics bastards
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Gore concedes on climate this year
By Steve Milloy GreenHellBlog, August 10, 2010
Speaking about the likelihood of climate bill being passed by Congress in 2010, Al Gore told a conference call of supporters tonight that, this battle has not been successful and is pretty much over for this year. Gore bitterly denounced the Senate and federal government stating several times, The U.S. Senate has failed us and The federal government has failed us. Gore even seemed to blame President Obama by emphasizing that the government as a whole has failed us although the House did its job. [emphasis added]
Gore urged his listeners to take the realistic view that they had failed badly. Gore said that Comprehensive legislation is not likely to be debated and that a lame duck debate is a very slim possibility indeed. (N.B. We thought, because Gore told us, that the debate was over.)
Gore blamed the skeptics for attacking science and scientists. They [the skeptics] did damage and cast doubt, Gore said.
In a warm-up discussion before Gore addressed the call, National Wildlife Federation chief Larry Schweiger referred to the skeptics as enemies and that he hoped the alarmists would outlive the bastards.
Read entire story: Gore concedes on climate this year at Greenhell blog