Watts Up With That?

No cause for alarm at five-year mid-point of the Armstrong-Gore climate “bet”


By J. Scott Armstrong

In 2007, University of Pennsylvania Professor J. Scott Armstrong’s attention was drawn to former VP Gore’s concerns about global warming. Having spent five decades studying the science of forecasting, Armstrong decided to examine the basis for the forecasts of global warming. He was unable to find a single scientific forecast to support the claim that the Earth was becoming dangerously warmer or colder.

Instead, he found that some scientists were using improper forecasting methods to make forecasts. Professor Armstrong alerted Mr. Gore to this fact and suggested that they cooperate in a validation test of dangerous global warming forecasts. He suggested a 10-year bet for which he would forecast no long-term trend in climate, while Mr. Gore could chose forecasts from any climate model.

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