Climate Letter #1153

An update on the status of Earth’s mountain glaciers.  As scientists have predicted, their rate of melting down continues to accelerate.  This post contains a graph showing the progressive rate of mass balance loss since 1980.  Melt rates can actually be determined through analysis of ice cores from as far back as 400 years ago.  In one typical case from Alaska, “The researchers showed that the amount of water melt currently is 60 times greater than it was prior to 1850.”
https://www.theguardian.com/environment/climate-consensus-97-per-cent/2018/apr/18/glacier-loss-is-accelerating-because-of-global-warming

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Why is Oklahoma burning?  An analysis from Weather Underground.  The latest three years have produced three of the top four wildfires in the state since 1997.  Among other things, periods that are unusually wet have provided extra fuel for burning during hot and dry periods that follow, which is similar to California’s recent experience.
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An interesting new report provides a realistic formula for staying within the 2C limit.  According to the analysis, “Staying within the agreed limit for global temperature rise will be simple, though not easy: it just needs a clean energy spurt providing a switch to clean energy six times faster than it’s happening today.”  It goes on to explain why this can be done without being overly disruptive, and with many new jobs and other benefits created along the way.  As for stranded assets, which generate fears in some quarters, their value is now estimated equal to $11 trillion worldwide but could eventually be double that figure if we don’t hurry up and make the recommended changes.  (Will that kind of advantage mollify the current owners?)
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Todd Davidson, writing for Fortune magazine, offers sound advice for the Trump administration.  “It’s time for conservatives to recognize our constitutional mandate to provide for the common defense by addressing the rising threat of climate change.”  He provides a list of arguments that are largely based on fine logic while avoiding any of the more usual fallback on alarmist forecasting.  This leaves little room for counters from those Republican deniers that prioritize protection of the coal and oil industries.
A cheap and easy way to convert cellulosic waste to clean biofuel will soon be on hand.  There should be enough material supply to completely replace that which now depends on food crops, and perhaps much more.  The end product, biobutanol, could be an even better replacement for gasoline than today’s ethanol.
http://www.anthropocenemagazine.org/2018/04/mushroom-farms-hold-a-secret-to-sustainable-biofuels/
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Commercial insect farms are gearing up to meet rising global demand for protein (Thomson Reuters).  Most of the product will go into animal feed, but humans are not being forgotten.
http://news.trust.org/item/20180413110044-2di8m/
Carl

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