Climate Letter #639

The flooding problem is getting worse and worse, as evidenced by the incredible event in Houston.  In this post Robert Fanney provides links to recent flood stories elsewhere, including several countries in the Middle East, Saudi Arabia, Russia and Chile.  Not only has the amount of global rainfall increased but weather systems are becoming organized in a way that allows rainfalls to be more concentrated in unfortunate locations.

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The scientific explanation for extreme weather events continues to evolve.  The Potsdam Institute for Climate Impact Research is perhaps the world’s leader.  Their new paper analyzes a disastrous flooding event that took place in the Balkans two years ago, describing mechanisms that are becoming more common in the upper atmosphere.
Here you can see the four-minute video released by Potsdam:
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The drought in Haiti is the worst that anyone can remember.  It is now beginning its third year, attributed to the combined effects of both a warming climate and El Nino.  Fortunately for this particular country there are sources of irrigation water that can be made available with the help of outside agencies, otherwise the situation would be close to desperate, as we have seen lately in so many other parts of the globe.
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A report from India that is bullish on solar energy.  This is from the minister of energy, who sees the cost of providing solar energy to the grid falling below that of coal-fired plants.  Plans for increasing solar capacity are being stepped up accordingly.  India can be influential in other countries with similar situations.
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A surprising new development in battery research.  Zinc-manganese batteries have long been known for many attractive features, compared with either lead-acid or lithium-ion, except for their rapid breakdown of operating durability.  A research group claims to have found the reason for this, which was unexpected, and also the remedy.  They now plan to create commercially useful products covering a variety of applications.  This sounds like a real winner, perhaps not too far from realization.
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From China, progress in the development of solar cells having an extreme level of efficiency:
Carl

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