Climate Letter #660

How Donald Trump sees climate change, and what he would do about the 2015 global agreement.  If elected, along with congressional majorities for the similarly committed Republican Party, the US could either try to reopen the process and  change the agreement or simply back out.  This has become a solemn promise, one that voters will need to consider and weigh the importance of against whatever other issues they have in mind.  Without the US, and assuming China stays on board, the rest of the world could still stick with the given plan but would need to accelerate vital actions in order to maintain the goals that have been agreed upon.  Trade relationships would then no doubt be altered, leaving the US in the almost completely isolationist-type position that Trump also seems to relish.  Something has to give before that all comes to pass.

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A report on major drought conditions around the world.  Records have been or are being broken on every populated continent.  Some of the details in this article have not been well-publicized elsewhere.  In many cases the timing of recently established drought includes much more than El Nino alone can account for.
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A major new discovery: How to create a huge increase in solar cell efficiency.  This is from an Australian based team known for previous accomplishments.  They have set a confirmed record of 34.5% efficiency in the laboratory, up from the previous record of 24%, using a layered strategy.  The theoretical limit for such a device is said to be 53%.  It will still take some time for developing scaled-up manufacturing techniques, but end products should be ready a decade or two earlier than anything like it was expected.
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An accidental genetic discovery results in vastly increased plant growth.  This apparently real phenomenon will require years of testing.  If something beneficial emerges I think it would most likely apply to enhanced biofuel production rather than food, where nutrition content is always the key.
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A new material greatly improves the reliability of wind turbines and will sharply reduce maintenance costs.  It adds strength to bearings that come under constant high-magnitude stresses. This should have a meaningful effect on the competitive total cost of producing wind energy.
Carl

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