Climate Letter #600

Update on the current coral bleaching event.  This is already the longest event on record, having begun in mid-2014, and with still possibly more than a year to go, under the influence of an El Nino amplified by a warmer base of ocean waters.  The frequency of recent bleaching events inhibits the time needed for recovery.

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A separate report discusses the status of the Great Barrier Reef, which is imminently in the line of danger:
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Follow-up to the story about ocean floor drilling off the coast of Antarctica, as reported in yesterday’s letter.  Some interesting and important details are added in this report, based on interviews with some of the key people involved in the work.  I believe this unusual research project has created a true milestone in gaining accurate knowledge of deep climate history that is highly relevant to the current situation.
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The relocation of coastal communities in the US has begun.  The home of an Indian tribe near New Orleans is officially the first to go, with climate change named as one of several causes.  At least three others are being set up for relocation in the near term.
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Despite losses, Canadian tar sands production is still rising.  The explanation makes that behavior seem quite reasonable.  This post also details the figures for transportation costs, and thus why the XL pipeline decision was so important.  Also, it is true that there is reluctance to shut down oil wells of every type, everywhere, because their future productivity is typically weakened in the process of restarting.
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New efficiency record for thin-film solar cells.  Confirmation of 22.1% was achieved for research cells, almost equal to numbers recently reported for certain silicon production cells.  Various claims are made about other measures of performance and also the future expected rate of progress toward still higher efficiency levels.
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A new poll about attitudes toward climate change in the US.  The results are surprisingly favorable toward recognizing a need for action, accepting the strong role of human activity, and even pushing for US leadership.  It will be interesting to compare with some of the older and better-known polls that should be reporting soon.  Might a new trend be  developing?
Carl

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