Climate Letter #721

“The Blob,” a recap. This feature from National Geographic provides graphic details of the havoc created by the vast body of exceptionally warm water that hung around for over two years in the Northeastern part of the Pacific.  Recognizing the novelty of the event, scientists are wondering about what it means for the future.

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The National Geographic organization, now part of the Rupert Murdoch empire, will present a climate-related TV series beginning in October, which is getting surprisingly good reviews in light of the new owner.  Check out these comments and the trailer:
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A current look at sea surface temperature anomalies.  Scroll down to the full global view for a number of noteworthy observations.  While the “blob” referred to above has dissipated there is still an abundance of relatively extra-warm water in the North Pacific and around the edges and outskirts of the entire Arctic region.  None of it can be good for marine life.  Meanwhile, the patch of cooler water that was observed for years in the North Atlantic appears to have drifted over to the north of the British Isles, and the Equatorial Pacific has been converted to a cool La Nina posture.  Cold meltwater is still expanding along the edges of the Antarctic ice shelves.  This fascinating chart is constantly evolving, often begging for explanations.
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A new study focuses on the “flash drought” phenomenon.  This is a much-needed (but not welcomed) addition to our broad base of knowledge about the worrisome effects of global warming.  The study, available in its entirety in this link, is written in a non-technical way that anyone can follow and learn much by doing so.  I have a feeling that these “lesser” forms of drought will be getting much more attention in the future.
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Current data and future projections related to human migrations caused by natural disasters and social violence, with  stresses due to climate change more and more often involved in both of these.    In 2015 the number of new displacements from natural disasters alone reached the amazing total of 19.2 million in 113 countries.  Africa generates more than half of all displacements.
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An explanation of the special kind of risk created by nighttime temperatures that are especially warm.  This is important because increases at night, on average, are often higher than those during the day.
Carl

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