Climate Letter #1555

Severe food shortages have arisen in Afghanistan, affecting over ten million people (ReliefWeb).  Several million are expected to reach an Emergency status during coming winter months, and many of these live in places that are hard to reach for assistance.  The past growing season has been plagued by drought and abnormal rainfall, leaving farmers with a shortage of seeds available for planting in the spring.

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Studies are seeing a rise in “climate whiplash” due to higher temperatures, with more to come (Yale e360).  These wild weather swings pose real danger to inhabitants.  This story has explanations of how they develop plus a number of recent examples.  For example, “The weather can become so hot, so fast that it quickly sucks large quantities of moisture out of the soil and can lead to major crop losses. Flash droughts occurred across the southern United States in late September, right after torrential rains had soaked the region.”
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The author of a new book about the jet stream provides a quick look at some things of special interest (The Conversation).  The way it wanders around always helps to explain strange weather fluctuations.  When climate change is added to the mix there occurs a whole new set of distortions, including powerful effects in the Tropics.  “And one thing is clear: the stress of increased temperatures and altered rainfall patterns from our destabilising climate will leave us even more vulnerable to the weather patterns brought by the whim of the wandering jet stream.”
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Methane leakage from coal mines is now recognized as a serious climate threat (The Guardian).  New studies are providing better data from sources where collection is normally difficult.  One key finding is that “deeper coal seams tend to contain more methane than shallower seams, while older seams have higher methane content than younger seams…..China’s enormous number of coalmines, of which many are more than 100 metres deep, means it is by far the largest source of coalmine emissions.”
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The future course of climate change is heavily dependent on how much coal is burned in China and India (Reuters).  This opinion piece employs statistics pulled from the new IEA report.  India must a way to sharply limit growth, where tonnage is expected to almost double by 2040, and China, today’s greatest consumer by far, must cut usage 60% by that year, if the Paris climate goals are to be met.  “This would require a major change in policy direction in both countries, something that would be difficult to achieve, both politically and financially.”
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An award-winning Indian author, Amitav Ghosh, has interesting things to say about different perceptions of the climate crisis in the East and West (Deutsche Welle):
Carl

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