Climate Letter #427

An interview with Michael Mann about the pope’s encyclical.  This 5-minute video touches on a number of key points with great clarity.  You will also get better acquainted with Professor Mann, who has become famous for his studies and has emerged as a favorite spokesman representing the climate science community.

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Alaskan wildfire report.  Alaska, like the rest of the Arctic, is warming up at twice the rate of lower latitudes, and is now unusually dry as well.  ” According to a recent study, total acreage burned in the state has increased fivefold since 1943.”  The future could see more of the same.
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Climate science.  A good educational piece covering the Gulf Stream and AMOC, what they do, how the two of them differ, how things are changing and more, based on new studies.  There are a number of surprises, with more to come, and yes, a slowdown trend is in effect for AMOC—but not for the Gulf Stream(!)  What that will lead to next has yet to be determined.
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The ocean’s future as a store of carbon is likely to diminish.  One of the main points:  “…under normal ocean conditions, carbon dioxide that dissolves in ocean surface waters will eventually mix with deeper waters, driving the carbon downward. But as ocean temperatures warm and the layers of water become more stratified, the waters mix less.”  In addition, with reference to the story above, “with climate change interacting with oceans, it’s causing ocean currents to shut down so that carbon is no longer pushed down into the deep ocean.”
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Battery technology grows more competitive.  Now the spotlight is on flow batteries, which have considerable advantages for large-scale storage.  It looks like different technologies could eventually prevail for different applications, all of which offer major opportunities as the energy storage market is “set to take off like a rocket.”
Carl

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