Climate Letter #1581

Things that scientists have learned in the past decade showing that the risks due to climate change are greater than what had been expected earlier.  Bob Berwyn wrote this for Inside Climate News, mostly covering changes in our natural surroundings that are already having an adverse impact on both human welfare and biodiversity.  This is all happening with global temperatures, on average, rising just a bit more than one degree Celsius.  It should be taken as a warning that the next degree of increase would also be likely to have effects worse than expected, possibly in an accelerated manner.  That is why we hear so much more from scientists than just a year or two ago about the need to avoid an increase of 2C no matter what the cost.

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An indication that China may be ready to put environmental goals ahead of economic growth (Reuters).  “China will maintain its environmental protection goals and will not ease off on trying to achieve them even as the economy slows, an environment ministry official said on Thursday…..We have no other choice but to go forward…..China’s gross domestic product (GDP) growth slowed to 6.0% year-on-year in the third quarter, the weakest in at least 27-1/2 years amid a bruising trade war with the United States, and business owners in industrial areas like Henan province say they are being hit hard by the environmental crackdown.”  While all of the talk is about air pollution, which is still devastating for China, there is no reason why the same attitude could not be adopted and extended in the face of closely related and growing evidence of damage from existing CO2 emissions.  China would see benefit not just by reducing its own emissions but by taking a more active role in persuading other nations, including the US, to follow suit.  It would make a difference.
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An unusually interesting new poll about voter attitudes and behavior in the US (The Guardian).  “Of the registered voters surveyed, 14% named “addressing climate change and protecting the environment” their No 1 priority over all other issues, compared with 2% to 6% before the 2016 presidential election.”  That’s quite a boost, and that same group is highly motivated to actually cast votes.  Otherwise, people who support Trump’s presidency create by far the largest bloc of reliable vote-casters, and they tend to have other priorities in mind.  This  information should all become a key part of the pre-election campaign dynamics next fall.
–The Executive Summary of the polling group’s report is of much further interest:
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Interview with a leading expert on the Amazon rainforest and its value to the global weather system (Mongabay).  Antonio Donato Nobre can explain the problem better than anyone else in the world, and here we have an extensive summary of what he has learned over 40 years of study.  He sees a process of desertificatiion being underway and nearing an irreversible tipping point.  The entire world would be gravely affected by its loss.
Carl

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