The Global Warming Challenge

Evidence-based forecasting for climate change

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Archive for December, 2007

U.S. Senate Report: Over 400 Prominent Scientists Disputed Man-Made Global Warming Claims in 2007

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Scott Armstrong and Kesten Green are two of the over 400 prominent scientists featured in a Senate Report debunking the scientific “consensus” on global warming. The report was released December 20th, 2007, and can be accessed at the U.S. Senate Committee on Environment & Public Works site. The following is a selected excerpt citing Armstrong’s climate challenge to Al Gore, scientific forecasts versus forecasts by scientists, and the recent study of polar bear prediction methodology.

Internationally known forecasting pioneer Dr. Scott Armstrong of the Wharton School at the Ivy League University of Pennsylvania and his colleague Kesten Green of the University of South Australia challenged Gore to a $10,000 bet in June 2007 over the accuracy of climate computer models predictions. “Claims that the Earth will get warmer have no more credence than saying that it will get colder.” According to Armstrong, the author of Long-Range Forecasting, the most frequently cited book on forecasting methods, “Of 89 principles [of forecasting], the [UN] IPCC violated 72.” Armstrong and Green also critiqued the Associated Press for hyping climate fears in 2007. “Dire consequences have been predicted to arise from warming of the Earth in coming decades of the 21st century. Enormous sea level rise is one of the more dramatic forecasts. According to the AP‘s Borenstein, such sea-level forecasts were experts’ judgments on what will happen,” Armstrong and Green wrote to EPW on September 23, 2007.

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Are polar bears endangered? It is all about the forecasts.

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A forecasting audit conducted by Scott Armstrong, Kesten Green and Willie Soon has concluded that the government’s administrative reports do not rely on scientific forecasting procedures. Thus, it would be irresponsible to classify polar bears as an endangered species. The authors are seeking additional peer review for their paper.

Written by climatebet

December 16th, 2007 at 1:22 pm

Counting the days

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It’s been over 2 months since Armstrong sent a simplified challenge with extended deadline to Al Gore. We’ll be keeping track until Mr. Gore responds.

Written by climatebet

December 6th, 2007 at 10:49 pm