Climate Letter #672

Posted on June 3, 2016 by Carl Campbell
A massive coral graveyard in the Pacific.  This area has been called the Super Bowl of coral reefs, among the world’s most lush and vibrant.  Just since November, 95% of the coral has been found no longer simply bleached, but dead, and covered with algae.  In places like this, climate change is already catastrophic—there is no “2C threshold.”

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An example of the huge messes too often created by oil producers.  This one, not widely publicized, is on display in Nigeria, affecting 1000 square miles and a population of 800,000 with all sorts of horrible scars.  Events like this provide an extra reason for wanting cleaner sources of energy.
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Something of a positive nature has been happening in the far north.  Thanks to global warming it has been getting much greener over the last three decades, thereby soaking up a good chunk of the CO2 arising from other effects.  Satellite data provide proof of the greening.  I have a hunch, however, that in the most recent eight months the benefits have been overcome by excesses of drought and wildfires, largely due to El Nino, thus allowing the extreme rise in atmospheric CO2 that’s recently been recorded.  With El Nino passing, that may just be a temporary hitch.
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Stephen Hawking and Carl Sagan talk about the fundamentals of greenhouse gas.  In an older video, two brilliant men who are not climate scientists but know a lot about science confirm the basic message about what is going on and where we are headed.  This is what deniers deny, while wanting us to believe they have better sources of information.
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Lonnie Thompson’s latest expedition.  This climate scientist is possibly the most courageous of them all, looking for climate history by drilling cores in mountaintop glaciers all over the world.  The latest venture took him up to 21,000 feet in Tibet.  His new heart worked just fine.  (Scientific American.)
Carl

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