Climate Letter #946

Researchers at Cornell University look at the problems of resettlement in the event or a future “worst case” rise in sea level.  As one would expect, having more people on Earth and less available land would create a bottleneck effect much worse than any we have known, and the potential for conflicts.  The numbers they use are almost certainly too high, but that is a useful way to drive home their main point.

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Climate change favors the formation of large hail stones.  This post summarizes the data for North America as provided by a recent study.
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How air pollution affects the performance of solar panels.  A close study provides surprising information about the nature and scale of this problem, which varies according to location.  “According to a new study, airborne particles and their accumulation on solar cells are cutting energy output by more than 25 percent in certain parts of the world.”  Manmade pollution and natural dust must both be accounted for.
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The extraordinary loss of sea ice in Antarctica in 2016 has been explained.  It was due to an unusual series of violent storms rather than some kind of major turning point in climate conditions.  The dynamics that govern sea ice extent in this region are completely different from those that rule in the Arctic, a common source of confusion for many people.
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An issue that could cause deep cuts in solar installations in the US (Yale e360).  This is all about the effort to curb imports of cheap solar panels from China by erecting tariffs.  “Most solar jobs in the United States are in sales and installation, not manufacturing, but tariffs could drive up the cost of solar and make it less competitive.”  Traditional energy producers, including the coal industry, favor putting on the tariffs, which could have quite an influence on any Trump decision.
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Revisiting the problem of plastic waste.  The reports keep coming in, and cannot be ignored.
Carl

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