Climate Letter #558

What is the greatest threat from climate change? We talk a lot about sea level rise and extreme weather events, both of which are easy to observe, measure or define.  In this post a claim is made that dwindling water supplies pose the greatest danger.  It should perhaps be emphasized that this is especially true with respect to the immediate future, because in fact there are already signs of how fast things are deteriorating in many high population areas.  Without water an area may quickly become uninhabitable, resulting not just in hunger but in mass migration and possible conflict.  “About 1.6 billion people already live in areas that are classed as having “water scarcity” and that number is forecast to reach 2.8 billion by 2025.”  It is a convincing argument.

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For California, El Nino is bringing heavy snowfall in the mountains.  That, along with plenty of rain,  and in spite of much destruction, is positive news for drought relief.  Meanwhile, other parts of the world are seeing less rain because of El Nino, making it a sort of global trade-off.
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What will it take to meet the goals that were set in Paris?  This material, gathered by the Associated Press, is formed into a quite useful discussion, worth reading for a realistic overview.  If geoengineering is on the agenda, who is going to be on the hook to pay for it?  Perhaps, finally, by way of funding with carbon taxes?  And just maybe, in terms of cost involved, would not an ounce of prevention be worth a pound of cure?
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15 top climate stories for 2015.  As chosen by Carbon Brief, one of my favorite sources of daily information.  Some of these stories have not generally been given the attention they deserve.
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Growing concern about climate change among millennials.  This has been determined via a survey taken by “Yik Yak,” drawn from users of social media.  The result was mainly prompted by reactions to weird weather conditions.  About 63% said their concern is great enough to affect how they vote, which is unheard of in older age brackets.
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Earthrise, as seen from the moon.  This is a newly created historical documentary of what the Apollo 8 astronauts saw and how they reacted.  Fascinating, and also inspiring..
Carl

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