Climate Letter #1418

A vitally important way to reduce fossil fuel usage is being overlooked (Utility Dive).  A reduction in total energy consumption is certainly not happening, and may be impossible.  Replacement of fossil fuels with renewable energy is happening, but the pace is still too slow.  There is a third way, also happening, but far below its maximum immediate potential—energy efficiency.  “In fact, the International Energy Agency has said energy efficiency improvements — just deploying existing cost-effective technologies — could be 40% of the solution for meeting international climate targets.”  Governments need to provide effective incentives for this to happen.

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Another preview of the coming major report on what the loss of biodiversity means to the future of humanity (The Guardian).  “The 1,800-page study will show people living today, as well as wildlife and future generations, are at risk unless urgent action is taken to reverse the loss of plants, insects and other creatures on which humanity depends for food, pollination, clean water and a stable climate.”
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A UN report covers hardship in four Central American countries due to severe weather impacts on agriculture (Thomson Reuters Foundation).  “More than one million people across Central America need food aid after droughts combined with heavy rains in the past year destroyed harvests…..As many as four in every five families in the Dry Corridor have had to sell animals and farming equipment to buy food in the past year.”  The same region was hard hit by drought from 2014 through mid-2016.
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A new study has found that, over a given region in the Midwest, extreme rainfall events do as much damage to crops as extreme heat and drought (Yale e360).  Climate models are predicting more frequent and intense precipitation events in coming decades, such that adjustments to crop insurance become likely.  (No surprise after this year!)
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Making a transition from fossil fuels to renewable energy will have considerable geopolitical consequences (Nature).  Some groups of thinkers have been imagining the various alternatives that could unfold, no one of which looks much more likely than the others.  This review provides a glimpse into how complicated this journey will be.  Compressing the process into just two or three decades, as currently being prescribed, increases the chances of mishap, that could have been avoided by getting started when the early warnings were being issued some thirty years ago.
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The Climate Reanalyzer is back in business after three days of server errors.  The image that was saved in last Monday’s letter can now be followed up, showing that the big Arctic heatwave is still there, with temperature anomalies still around 18C in places.  If you are catching this today (Friday) go to the basic website (https://climatereanalyzer.org/wx/DailySummary/#t2anom ) right away and check out some of the links with other maps, especially Precipitable Water, which is essentially water vapor.  At long as large volumes of that gas keep pouring into the region its highly magnifying greenhouse effect will remain.
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Inline image

The six numbers here at the bottom all have their own special significance, which I will discuss later on. They all represent today’s changes over a base period that averages almost exactly three decades.
Carl

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