The Global Warming Challenge

Evidence-based forecasting for climate change

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Archive for April, 2015

Cooling March follows February down

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We have been slow to get the chart up for The Climate Bet results to March 2015. It is up now! Click on the thumbnail chart to the right for the full-sized image and data table. With the April global mean temperature reading only days away, will save our analysis and commentary until then.

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April 30th, 2015 at 1:07 pm

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Inquiry into global temperature data integrity announced

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The London-based think-tank the Global Warming Policy Foundation  announced on 26 April 2015 a major inquiry into the integrity of the official global surface temperature records. Questions have been raised about the reliability of the surface temperature data and the extent to which apparent warming trends may be artefacts of adjustments made after the data are collected.

The inquiry will review the technical challenges in accurately measuring surface temperature, and will assess whether the adjustments to the data are biased and, if so, to what effect. For more information, or to make a submission, see here.

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April 27th, 2015 at 1:42 am

Doubt merchants, or truth warriors? Battle of the documentaries

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Scott Armstrong was interviewed for the documentary, The Global Warming War. Released late last year, the movie provides a contrast with Merchants of Doubt in both style and substance. See The Global Warming War-Scott’s clips (2.5 minutes).

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April 17th, 2015 at 10:00 pm

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La Stampa interviews Armstrong on Gore bet

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The Italian newspaper La Stampa published an Alain Elkann Interview of Scott Armstrong on Sunday April 12 titled “J. Scott Armstrong: “Vi spiego perché le previsioni sul clima sono sbagliate”” here. Alain was particularly interested to know about the subject of Professor Armstrong’s challenge to Al Gore to bet that temperatures will increase dangerously, as Mr Gore has threatened will happen.

Regular readers of this blog will be familiar with the Challenge, but for those of you who are not, or who are interested to read a fresh summary of what scientific forecasting tells us about 21st Century temperatures, you can find the full interview in English on Alain Elkann’s own site here. For those of you who have friends who are struggling to make sense of the dangerous manmade global warming alarm, the interview is a good place to start.