Climate Letter #883

An update on the atmospheric CO2 level.  Every year there is a seasonal peak at Mauna Loa that is reached in May.  Last year’s peak, just below 408 ppm, exceeded that of 2015 by a record of almost four parts, induced by El Nino.  This year’s gain will be much smaller, hopefully close to two parts, but April is always both large and unpredictable, depending mainly on the rate of biomass decay in the Northern Hemisphere.  You can see from this graph (scroll down) that daily readings have not recently tightened up enough to form a clear trendline.  We must still wait for some badly needed signs of real progress toward a major reversal.

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What is it like to be in denial about climate change?  The Heartland Institute is the intellectual backbone and guide for the political movement, which now has control over the US government and the policies being enacted by the new administration.  You can see from the website that it very well-organized, bold and aggressive, and certainly well-funded.
—The site has a link to the full archive of the 12th International Conference on Climate Change, sponsored by the Institute in Washington DC on March 23-24.  There are some familiar names among the speakers.  http://climateconference.heartland.org/
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Here is evidence of how the Institute is attempting to make fundamental changes in the way science is taught in American schools.  There are over 200,000 K-12 science teachers on the publications’ mailing list.  These people are serious about their mission, and it goes far beyond the older and generally similar push to teach creationism.  There is nothing quite like it on the side of climate action.
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The US Congress is now passing bills designed to assert political judgment on claims made by science, just as Stalin did for Russia in the 1930s.
—Proceedings of a hearing on climate change held by a House of Representatives committee on March 29th.  Michael Mann was the only representative of mainstream science called to testify, aligned against three science personalities who are singular deniers.
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The new scientific study of the “plastisphere” is described.  It is a whole new type of ecosystem, the result of human activities that make up a critical part of the Anthropocene in much the same way as climate change, and will likewise soon need to be curbed.
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A large source of CO2 emissions that is not being accounted for has been identified.  It is created as a result of special effects due to cutting up large forests into smaller pieces, thereby adding about one-third to normal estimates of losses due to deforestation.
Carl

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