The Global Warming Challenge

Evidence-based forecasting for climate change

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Archive for the ‘public policy’ Category

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.

Armstrong interview on Earth Day: “Give us your money and we will save you…”

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“A lot of these people that were marching weren’t familiar with the first Earth Day in 1970. The first Earth Day said, ‘The science is settled: the Earth is getting colder.’ And the government said, ‘Give us your money, and we’ll save you,’” Armstrong told SiriusXM host Alex Marlow.

“The earth did not get colder. In fact, it got a bit warmer,” he noted. “So money was wasted, people forgot. But then last Saturday, we’re told once again that this time it’s really settled, and it’s getting warmer this time. So give us your money, and we’ll save you.”

More…

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April 25th, 2017 at 9:49 am

Regulate the climate?: A new resource on the effects of regs

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Advocates of the dangerous manmade global warming hypothesis call for regulations in response to their alarm. Assume for a moment that the alarmists’ feverish scenarios really were going to come to pass… would regulations make the situation better?

The Iron Law of Regulation suggests otherwise. For a new site from Kesten Green and Scott Armstrong that is devoted to experimental evidence on the effects of regulations, see IronLawofRegulation.com.

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June 20th, 2016 at 7:34 pm

May 2016 sees temperatures climb down from El Niño peak

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The May global average temperature was down by 0.16ºC from the previous month as the El Niño weather system weakened. The 0.55ºC May figure was nevertheless still warmer than the earlier, 2010, peak in temperatures. In other words, we have been experiencing the kinds of temperatures that the dangerous manmade warming alarmists have been warning would be harmful. We wonder how much additional net harm (i.e., after allowing for additional benefits) was caused by the warmer average temperatures over the last six or eight months?

For a larger view of the updated Climate Bet chart, click on the small chart to the top right of this page.

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June 14th, 2016 at 11:08 am

Tenth International Conference on Climate Change

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The Heartland Institute’s Tenth International Conference on Climate Change (ICCC 10) took place in Washington D.C. on the 11th and 12th of June. Scott Armstrong presented a talk based on research with Kesten Green. Slides of their talk can be downloaded by clicking here. A flyer, summarising their evidence on climate forecasting, with links to relevant papers is available, here.

For this who missed the conference or would like to catch talks that they missed, videos of the ICCC 10 talks are now available online here. Scott gave his talk in a session with Anthony Watts and Roy Spencer. Video of their excellent session is here.

April data after improved procedures: Chilling news for Mr Gore

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The benchmark global temperature data from the researchers at UAH-Huntsville have been adjusted to compensate for drifting in the positions of the satellites that take the readings and other improvements in the measurements and calculations. The improvements in the data series must be disconcerting for warming alarmists such as Mr Gore and the IPCC: dangerous warming and a “turning point” are nowhere to be seen. We hope they are relieved that there is (even less) reason to believe the Earth is in danger and that governments will realise the folly of policies to reduce carbon dioxide levels.

Our chart of The Bet to April 2015 is shown to the right of the page, as usual, using UAH’s revised series. The picture is clear, but for this who prefer numbers, here is a very small one: 0.000000000005. That number (which is roughly equal to 1-divided-by 214 billion) is the probability that temperatures would have equaled-or-exceeded Mr Gore and the IPCC’s 0.03°C per annum warming projection as few or fewer times as the 13-out-of-88 months of The Bet so far that they have done so… if their projection were unbiased.

For more information on the UAH data revisions, see the description by Spencer, Christy and Braswell, here.

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May 24th, 2015 at 3:18 am

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 theclimatebet.com: 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.

86 months on, and still no “tipping point”

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With 86 months of the 120 month Climate Bet behind us, we are still waiting for the “tipping  point” Mr Gore promised us. We hope you haven’t been holding your breath, or planted bananas in your wheat field. While the actual temperature has been cooler than Professor Armstrong’ no-change forecasts for more than half of all bet months (51%), the Gore-IPCC forecasts ran hotter than the actual temperature for 81% of months to date.

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March 11th, 2015 at 11:41 am

Why we don’t use IPCC temperatures for The Bet: An update

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In case you, and we, needed reminding, Christopher Booker describes the latest stories to break on the dubious adjustments and revisions that government agencies make to the sparse measured terrestrial temperature record in his The Telegraph article titled “The fiddling with temperature data is the biggest science scandal ever.”  The adjusted data are used to derive the global average temperature series used by the IPCC and others who promote warming alarmism.

Reading Booker’s article leaves the reader with the impression that the use of the term “fiddling” in the title amounts to a classic case of British understatement. The term “rewriting history” is perhaps closer to summarising the violence that is still being done to the official temperature records.

A picture is sometimes worth a thousand words. Steven Goddard’s changing temperature history charts on this page of his blog very effectively illustrate some of the adjustments that have been made to the official series. It is possible, one might suppose, that better data might become available decades or even centuries after the event, or that better methods for analysing data might be developed. But such developments would not explain why every round of adjustments to the older data has resulted in a stronger warming trend.

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February 9th, 2015 at 6:04 am

New Book “Climate Change: The Facts 2014”

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The Institute of Public Affairs have published a collection of works on the physics, economics, and the politics of climate change (a.k.a. the alarm that dangerous manmade global warming is and will continue to occur.) The 21 chapters by leading researchers and commentators include Willie Soon’s “Sun shunned”, and Kesten Green and Scott Armstrong’s “Forecasting global climate change”. The book is available, here. We suggest sending Mr Gore a copy.

Update: Kindle versions of Climate Change: The Facts 2014 are now available on Amazon. Either search Amazon.com for the title or click the link to the book on your country’s Amazon site from the following list: US, UK, CA, AU, DE, FR, ES, IT, NL, JP, BR, MX, IN.