Climate Letter #1048

The drought situation in the Horn of Africa, updated as of October 31.  The humanitarian situation is rapidly deteriorating as a result of three consecutive years of failed rains, affecting millions of people.

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Because of the way climate has changed, areas of deforestation in the Amazon do not have potential for full recovery.  A study finds that because of a drier climate new growth will only collect two-thirds of the carbon that was lost.  This finding supports other recent studies which show that tropical forests have lost their ability to act as a carbon sink for much the same reason, thus reducing the carbon budget still available for human activities.
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Research in carbon capture and storage technology (CCS) seen as a lifeline for big oil.  This article explains how industry is promoting optimism toward future research success as a way to ease the fear of rising emissions.  There was a big sideshow to that effect at the UN conference in Bonn, aimed at delegates.  Also, industry is pushing for more government subsidies to support and speed up the research, “for the benefit of society.”
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An argument for why the US should be drilling for oil in the Arctic.  The Alaska Pipeline has technical problems when the normal flow of oil inside of it is reduced, which is now the case, accompanied by financial problems for its owners and the state of Alaska.  More oil is required just so fields currently in production can keep operating.  “Closure of the pipeline would shut down all northern Alaska oil production, devastating Alaska’s economy and deepening U.S. dependence on unstable countries throughout the world.”  A trenchant report from Yale e360.
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The story of one Alaskan village with very little time left.  Like two dozen others it sits on a coastline that is rapidly eroding due to effects of climate change.  Getting relocated is an immediate problem for the residents of Newtok.  The 8-minute video produced by HBO is absorbing and raises questions about future government policies as more citizens become affected, not just in Alaska.
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Why are East Antarctica and West Antarctica so different?  Researchers have found that the land below West Antarctica is much the warmer of the two, making it easier for glacial ice to slide toward the sea.  “The East is a giant chunk of old, cold continental crust. The West, however, underwent recent rifting in the Cretaceous (100 million years ago) that has pulled it apart.  This rifting has thinned the crust and brought hot material from deep down in the Earth to within 100km or so, or even maybe less, of the rock surface.”  Beautiful map included.

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