Climate Letter #342

The polar vortex is back, and even worse than a year ago for North America. The low temperature yesterday for all of Alaska was minus 6F, while a town in northern Minnesota registered minus 42. The link below opens with a picture of a whole set of temperature anomalies yesterday for this part of the world. This is about as extreme as you could ever hope to see.

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While we are on the subject, why not open the Reanalyzer site to get today’s information in additional detail. http://cci-reanalyzer.org/DailySummary/# Start with the straight-up temperature readings and follow some of the particular color lines from place to place. I see one line, 14F, that swung from North Carolina all the way up past Alaska and far out into the Arctic Ocean at the time the chart was made. An even warmer line, 32F, swings on an offshore route from southern Georgia up to waters well to the north of Scandinavia. For different perspectives scroll down to the full-globe spread chart, or check various regionals by clicking on the round map at the top.
Now switch to the Temperature Anomalies and do the same kind of exploring. The most striking thing here is how extreme and convoluted the anomalies are in the northern hemisphere compared with those in the southern. This has become an everyday occurrence for many months. The accepted explanation has to do with the extrordinary difference in jet streams in the two polar regions. The northern one has become much more disorganized in recent times, mainly due to Arctic polar warming, while the one in the south has remained as before. Could this be the new normal?
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What the US Navy and Pentagon think about climate change. They look at it in terms of national security, and seem to have strong feelings on the subject. How is the new Congress supposed to react?
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The cost of solar energy v. coal. Here is a summary of a recent report that has attracted a good deal of attention. One of the key points made is that China seems to have caught on to this trend and has become committed to making the most of it.
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What’s going on with EV battery technology? Serious people are out there trying to do things that are completely revolutionary. This group, from the U of California, seems to be making progress.
Carl

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