A massive new report covers the threat to Himalayan glaciers. The 650-page report had 210 authors and took five years to complete. “Two-thirds of Himalayan glaciers, the world’s “Third Pole”, could melt by 2100 if global emissions are not sharply reduced, scientists warned in a major new study issued Monday. Even if the most ambitious Paris Agreement goal of limiting global warming to 1.5 degrees Celsius (2.7 degrees Fahrenheit) is achieved, one-third of the glaciers would go, according to the Hindu Kush Himalaya Assessment.” There was no indication of any way to prevent further melting to the lesser extent, which is apparently unstoppable. About 2 billion people will be affected by water shortages and more. https://phys.org/news/2019-02-two-thirds-himalayan-glaciers.html
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–The Guardian also has good coverage of this important report, with some added insights:
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A new study has something favorable to say about Greenland’s ice sheet. There have been geological changes over the past million years that make it less sensitive to warming than it was before, and thus we still have a chance to save most of it from melting—if we control the warming trend. The authors include two well-known veteran ice sheet scientists, Richard Alley and David Pollard.
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Climate journalist David Wallace-Wells has written a book about the possible devastation that our planet faces if there is no radical change of course. David believes the impacts will be greater than most people have been lead to believe, based on his knowledge of scientific studies that have not received the attention they deserved. This post from The Guardian contains an edited extract from the book itself, which is entitled, The Uninhabitable Earth: A Story Of The Future.
–Note: An example of one of the studies David makes reference to can be found in CL #1201 on last June 26, which took into account the type of long-term impacts that occur due to changes in the functions of the Earth System. Most forecasting is limited to only those impacts that are likely in the current century.
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Separately, The Guardian also has published an interview with Wallace-Wells that is more focused on the personal struggles he has experienced in his chosen career path:
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An organization called Crowdsourcing Sustainability has asked sixteen public figures to offer high-priority recommendations for what every concerned individual can or should do to help promote the movement that is seeking a more aggressive level of climate action. They have good answers, with a lot of stress on the importance of communicating. (And I would add, the more one actually knows about climate science and how it works, the better one’s ability to communicate with confidence.)
Carl