Surprisingly large losses of permafrost soil carbon detected at a site in Alaska. Researchers applied a new method of measuring losses, with the result being far greater than common estimates would expect. The program was directed by Edward A. G. Schuur, a highly respected veteran in the field of permafrost studies. The Abstract is all I have available for reading at this time. It’s message is brief and clear, claiming a high degree of confidence in the result and recommending that the method of testing be applied to other sites all over the world.
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The latest climate models predict a much hotter Earth from a potential doubling of the CO2 level (EOS). This story was based on presentations given at a major annual science workshop last week in Boulder, Colorado. The USDOE model reports a 5.3C temperature gain when the Earth system (after doubling to 560 ppm) reaches equilibrium, while its Canadian equivalent is seeing 5.7C. These high numbers largely reflect new information that reduces the cooling effect of certain types of clouds, as assumed in all earlier models.
–One of the key presentations, given by senior scientist Andrew Gettelman, is produced in the form of an outline at this link from the conference report:
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An update on the trend of changes in the annual average extent of sea ice around Antarctica (The Guardian). Four years of precipitous decline, following a previous upward trend, have still not been explained. The result for 2018, a slight uptick, has lately shown signs of heading lower again.
–Strangely, almost all of the surface water surrounding the ice is cooler today, on average, than it was thirty years ago, as shown by this map:
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The world’s northernmost town, Longyearbyen, is also the fastest-heating town on Earth (The Guardian). The year-around temperature of Svalbard archipelago (well to the north of Norway) has risen by an average of 4C since 1971, or an even more astounding 7C in the wintertime. This creates all kinds of problems for the local people. A fine story, well-illustrated.
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Major improvements in lithium battery design reported by researchers at the University of California-San Diego (Science Daily). It is said to achieve a 50% increase in energy density along with exceptionally high cycling efficiency and other benefits.
Carl