Climate Letter #985

Posted on August 22, 2017 by Carl Campbell
Will the number of climate migrants reach one billion in 2050?  No one can safely make such a prediction, but this story provides a good bit of information that leads one to think it may be quite possible.  Almost anyone who is today dependent on subsistence agriculture is vulnerable to some type of major impact.

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A study has quantified the amount of carbon that agriculture has removed from the soil.  Over the last two centuries 133 billion tons have been removed, which is almost equal to the amount lost by deforestation.  The rate is still increasing, but could be reversed.  (Human activities cause the release of about ten billion tons of carbon per year from all sources, topped by fossil fuels.)
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More and more problems are being observed caused by the algae growth that results from nitrate fertilizer runoff.  This story highlights algae that gets deposited on beaches, where it readily displays the poisons that are produced when the stuff rots.
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What if we have to give up eating meat?  That is one of the front-running, logic-based solutions to the need for eliminating greenhouse gas emissions.  Fortunately, there are other ways to get protein, and there are people making a serious effort to develop the means, just like the now proven successful effort to develop photovoltaic energy.  Here is the story of such a project and its state of progress:
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Reasons for expecting the growth rate of electric vehicles to rapidly accelerate.  Amory Lovins is not known for making conservative predictions, but he is usually right, and his arguments have a plausible tone.
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Book report:  “Junk Raft,”  by Marcus Eriksen.  This is a lengthy review of a new book about the problem of plastic waste, published by New Republic.  The basic impetus behind this activity plus the urgent need for remedial action closely parallel what we find in our daily research into climate change.
Carl

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