Climate Letter #841

Climate change contributes to a tipping point for residents around the Bay of Bengal.  Their problem is the continuing decline of fisheries that were once abundant.  A majority of the 200 million people living on the coasts are dependent on this source of everyday sustenance, loss of which is leading to a migratory exit that has already begun.

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A new study about soil’s role in the carbon cycle shows why there is a significant net loss in the form of CO2 as temperatures rise.  Two main reasons are described.  The study collected data from a variety of sites across a range of ecosystems.  While methods used are necessarily experimental the data is considered robust, and especially worrisome in the case of Arctic soils that have high carbon content.  Soil respiration has always been a subject of uncertainty for climate models because of the difficulty involved in making valid measurements via direct observation.
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A progress report on what is being done to reach the 2C warming limit set in Paris.  A comprehensive study of many complex indicators concludes that on balance there are hopeful signs in terms of meeting pledges to reduce emissions.  What is missing is the absence of progress toward carbon capture and storage, which is an important factor that was built into the assumptions without much foundation.  You may recall that Kevin Anderson has warned us many times that depending on CCS was unrealistic, and that without it the unreduced burden of CO2 translates into an outcome for temperatures that would be higher by about 0.8C.  As the lead author of this study points out, “If we don’t have CCS, then we will need to reduce use of fossil fuels much faster and in a much more disruptive way.”  And what would that be?
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The kind of thinking that motivates the now dominant Republican policy toward the environment and climate change.  This comes from one of Donald Trump’s closest advisers.  What he says may sound weird but is perfectly true from the standpoint of big business, at least those corporations that have a deep desire for freedom from the regulations that inhibit their profits.
Here is some insight into the funding behind this political movement:
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A practical application using batteries in support of a utility power grid in California is now in place.  This all happened in response to an emergency, but the positive implications are far-reaching.  “Manufactured, shipped, installed and readied for operation in roughly three months, the batteries are connected to distribution circuits at Southern California Edison’s Mira Loma substation.”

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