Climate Letter #795

Posted on November 23, 2016 by Carl Campbell
Bolivia has a really serious problem with drought.  When your glaciers disappear and your lakes and reservoirs dry up it is hard for life to go on.  This has been developing for several decades, in step with rising temperatures.  Thanks to Robert Fanney for a thorough report on this badly stricken region.

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Five charts that clearly show why climate change is worrisome.  One of the charts is not as familiar as the others.  It displays an index that expresses the natural impact of all types of extreme weather events since 1910.  The trend for the US, as shown, is believed to be roughly matched globally.  The CO2 chart should stir your interest in coming to a full understanding of how great the changes in climate were during the ice ages.
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A new report about the troubles of wildlife species unable to adapt to rapid climate change.  The difficulty of moving to a better location is compounded by the excessive destruction of natural habitats.  The current rate of temperature change is far greater than anything historical that was limited to natural processes.
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California is struggling to deal with a multitude of dead trees.  102 million have died from drought and disease in the last six years, 62 million in 2016 alone.  Mortality is expected to remain high in 2017.  What is to become of all those trees, or what to do about them, is the main theme of this story.
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A major improvement in the formulation of perovskite solar cells.  The lead metal component can now be replaced with tin without sacrificing performance, which opens the door to commercialization without the existing safety issues.  Production costs may drop as well.
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Progress report on community solar plus battery storage installations in Australia.  Market acceptance is high because homes and businesses can save big money on their cost of electricity while becoming fully independent from the grid.  A fast-moving mass market can be realistically envisioned.

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