The Global Warming Challenge

Evidence-based forecasting for climate change

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April 2014: Cooling better bet than dangerous warming

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With April’s temperature another to fall below the no-change-from-2007 line, Al Gore’s tipping point continues to elude us. The errors from the Gore stand-in forecast (the IPCC’s +0.03°C per year) are now 27% larger than the errors from Armstrong’s no-change forecasts. The Gore error’s have been so bad, that the contrary hypothesis of natural global cooling would have been a much better bet. Yes, the errors from forecasting temperatures would decline at 0.01°C per year would have been 17% smaller than Mr Gore’s errors! Click on the chart on the right for the latest data on the bet.

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May 14th, 2014 at 1:54 am