Climate Letter #1446

Posted on June 13, 2019 by Carl Campbell
A new study related to the stability of the West Antarctic ice sheet (Phys.org).  This study from Rutgers University found a linkage between the warming of waters in the tropical western Pacific Ocean and the climatic patterns that are destabilizing this ice sheet.  “Knowledge of these relationships significantly enhances our understanding and interpretation of past and future West Antarctic climate variability.”  These findings should lead to better predictions of how much sea level rise we might expect from this important and now highly active source of potential melting.

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New studies are showing that recent heatwaves experienced in the Northern Hemisphere would not be possible in the absence of temperature changes caused by increases in greenhouse gas emissions (Carbon Brief).  One study “also finds that summer heatwaves on the scale of that seen in 2018 could occur every year if global temperatures reach 2C above pre-industrial levels. If global warming is limited to 1.5C – the international asperational limit – such heatwaves could occur in two of every three years.”
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How rising temperatures facilitate the spread of infectious diseases (The Ecologist).  This story provides insights into several situations that are of current concern, not all of which are limited to developing countries.
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How one private company wants to lead the agricultural revolution (CNBC).  The rapid changes that are required for agriculture to reverse current practices and assume a positive role in solving the problems of climate change are well known, but effective leadership has been lacking.  One new company wants that to change, on a massive global scale, and is putting creative and practical measures in place for doing so.  There is a special incentive package involved that should capture the attention of any of the farmers who cooperate.  It looks interesting.
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Further commentary on how consumers must contribute to climate action, with an emphasis on city dwellers (National Geographic).  This adds to the story in yesterday’s letter based on the same report.  When you stop to think about it, two of the world’s greatest religions were founded by teachers who were strongly opposed to any sort of extravagance in personal consumption.  The followers in some cases have kind of gotten away from that philosophy.
Carl

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