The Global Warming Challenge

Evidence-based forecasting for climate change

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Archive for May, 2017

Month 112 of 120 month Climate Bet (April 2017) sees temps near average, again

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April’s UAH temperature anomaly came in at 0.27°C, up from March (0.19°C), but well down on the 2016 average of 0.5°C. With 8 months of The Climate Bet left to run, we ask again, “how high would temperatures need to be over the remainder of 2017 for Mr Gore to win The Bet?”

If the temperature anomaly equalled the high for the period of The Bet so far (0.83°C) for the rest of this year, Professor Armstrong would still win The Bet backing the Green-Armstrong-Soon no-trend forecast. In fact, any plausibly extreme warm temperatures over the remainder of 2017 would still leave Professor Armstrong as the clear winner.

For the latest anomaly and updated Bet chart, click on the small chart image in the right column.

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May 23rd, 2017 at 9:01 am

Lindzen on climate alarmism

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MIT professor of atmospheric science Richard Lindzen wrote in his April 25 “Thoughts on the public discourse over climate change”:

Although I have presented evidence as to why the issue is not a catastrophe and may likely be beneficial, the response is puzzlement. I am typically asked how this is possible. After all, 97% of scientists agree, several of the hottest years on record have occurred during the past 18 years, all sorts of extremes have become more common, polar bears are disappearing, as is arctic ice, etc. In brief, there is overwhelming evidence of warming, etc. I tended to be surprised that anyone could get away with such sophistry or even downright dishonesty, but it is, unfortunately, the case that this was not evident to many of my listeners. I will try in this brief article to explain why such claims are, in fact, evidence of the dishonesty of the alarmist position.

To read the rest of his op-ed, see here.