Climate Letter #658

CO2 report.  This post from Climate Central includes an unusual graph showing the progressive pathway of atmospheric CO2 for each of the last six years, and how they compare.  This year’s high releases clearly stand out, but there is nothing reassuring about the behavior of the previous four years.  So far, all the talk about bringing a stop to CO2 growth is just talk, nothing more.  There is even a distinct likelihood that Mauna Loa will never again, for at least a few centuries, see even a single day below 400 ppm.  That will be tested during the seasonal lows in September.

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New record high temperature for the month of April.  Mainly thanks to El Nino, it beat the previous April record by 0.24C.  2016 is now virtually assured of setting a new full-year high, although monthly comparisons will soon start to become much less vigorous as El Nino fades into La Nina.  We can also expect 2017 to be a considerably cooler year, back on the main advancing trendline.  The spring warmth this year has had its greatest effect on Arctic sea ice and boreal forest fires, as both set records.
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New research looks at the future of forests and tundra in the far north.  This is an important study because we may already be seeing the first signs of one of those tipping points that cause the most worries for climate scientists.  In the far north the excess heat that has been created by the effects of CO2 from fossil fuel emissions produces more CO2 in a natural way, which causes yet more heat to be created, followed by still more natural CO2, and so forth.  The margin that will allow it to escape is indeed thin, as the research indicates.
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Donald Trump has picked his new energy adviser.  This individual, who represents the views of the oil and gas industry, also represents a state that has suffered severe environmental damage from the fracking side of the industry, an interesting combination.  Economic activity, which is now hurting, always seems to win favors in a situation like this.
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The role of vanadium in the renewable revolution.  “The unique properties of vanadium make it ideal for a new type of batteries that may revolutionise energy systems in the near future – redox flow batteries.”  The story links to a short video that shows how they work, which sounds ideal for large-scale, long-term power storage.
Carl

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