Climate Letter #688

Peat bogs are being converted into fuel-packed fire hazards.  CO2 in the atmosphere has increased about 4 ppm over where it was 12 months ago.  That is more than 60% greater than the gain we would normally have seen with human activity like fossil fuel burning being the principal cause.  There are several reasons for such a huge natural boost, and these need to be curbed just as much as all the human causes if we are to have any hope of slowing and eventually stopping the CO2 uptrend.  Peatland fires are one of the important parts of the natural emissions group.

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How will Brexit affect plans to combat climate change?  Almost all of the reports I’ve seen have a negative or worried tone, at least with respect to global cooperation at the level of big government policy makers.  There are other groups of important people who have even stronger commitments than top government leaders, who may be ready to step up and fill the gap.  I am thinking about the organization of big-city mayors that was described in my letter last Friday.  Also, the link below indicates that many business leaders may be ready to double down in a helpful way.  Plus, any slowdown in economic activity that might result from the Brexit, as suggested by various kinds of market activity, would typically be reflected in a reduction in demand for energy, which in turn would likely dampen carbon emissions for a while.
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One year later, how the pope’s message has changed the attitude of Catholics toward climate change and other environmental issues.  It has made a real difference in many parts of the world.  Thanks to the Christian Science Monitor for their research in bringing us this story.
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A new way to manufacture silicon solar cells at considerably lower cost.  Apparently there is no penalty with respect to efficiency.  The research has had an impressive group of supporters so it should quickly gain acceptance, and be made widely available to industry.
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A neat way for solar cells to capture more sunlight.  The principle was copied from nature.  The effect is said to add 13% to the generating power of the cells that use it.
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Climate science.  This link has a well-constructed chart that shows how all the main components of radiative forcing have changed since 1750, up-to-date through 2014.  With only a few exceptions, positive and negative forcings both show the massive effects of human behavior.
Carl

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