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<span style="font-size:12.0pt">1. If estimates of the economic impact of the climate crisis have seemed oddly myopic to you as they have to me, Naomi Oreskes and Nicholas Stern assure us that they are.<span style="mso-spacerun:yes">
</span></span><a href="https://www.nytimes.com/2019/10/23/opinion/climate-change-costs.html"><span style="font-size:12.0pt">https://www.nytimes.com/2019/10/23/opinion/climate-change-costs.html</span></a><span style="font-size:12.0pt"></span></p>
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<span style="font-size:12.0pt">2. Johns Hopkins’ Monica de Bolle warns that we could be two years from the point at which the Amazon rainforest can no longer sustain itself and degrades to a savannah, becoming a significant net carbon source. Some experts place
the Amazon’s tipping point further in the future, while others support de Bolle. We still have a chance to reverse the destruction. The warning poses an immediate challenge which requires a response.
<span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span><a href="https://www.theguardian.com/environment/2019/oct/23/amazon-rainforest-close-to-irreversible-tipping-point"><span style="font-size:12.0pt">https://www.theguardian.com/environment/2019/oct/23/amazon-rainforest-close-to-irreversible-tipping-point</span></a><span style="font-size:12.0pt"></span></p>
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<span style="font-size:12.0pt">An article in EcoWatch adds details, including the amounts of carbon involved and a set of proposals from de Bolle.
</span><a href="https://www.ecowatch.com/amazon-rainforest-could-be-two-years-from-dangerous-tipping-point-2641087910.html?rebelltitem=1#rebelltitem1"><span style="font-size:12.0pt">https://www.ecowatch.com/amazon-rainforest-could-be-two-years-from-dangerous-tipping-point-2641087910.html?rebelltitem=1#rebelltitem1</span></a><span style="font-size:12.0pt"></span></p>
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<span style="font-size:12.0pt">3. In a Yale Environment 360 interview from last month Brazilian expert Carlos Nobre discusses issues around the loss of the Amazon to deforestation.
</span><a href="https://e360.yale.edu/features/will-deforestation-and-warming-push-the-amazon-to-a-tipping-point"><span style="font-size:12.0pt">https://e360.yale.edu/features/will-deforestation-and-warming-push-the-amazon-to-a-tipping-point</span></a><span style="font-size:12.0pt"></span></p>
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<span style="font-size:12.0pt">4. Since 2002 a secret agreement has allowed home builders to block climate adaptation measures, including energy efficiency, on two key congressional committees. Homes are responsible for about 20% of greenhouse gas emissions
in the US. <a href="https://www.nytimes.com/2019/10/26/climate/building-codes-secret-deal.html">
https://www.nytimes.com/2019/10/26/climate/building-codes-secret-deal.html</a></span></p>
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<span style="font-size:12.0pt">5. MIT has developed a cheap electric device which removes CO2 from air streams at even low concentrations.
<a href="https://www.cnet.com/news/a-new-system-from-mit-engineers-can-remove-carbon-dioxide-from-the-air/">
https://www.cnet.com/news/a-new-system-from-mit-engineers-can-remove-carbon-dioxide-from-the-air/</a></span></p>
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<span style="font-size:12.0pt">6. A Stanford study finds that using carbon capture with fossil fuels removes far less than has been claimed, and never can be preferable to using renewable power instead.
<a href="https://phys.org/news/2019-10-carbon-capture.html">https://phys.org/news/2019-10-carbon-capture.html</a></span></p>
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<span style="font-size:12.0pt">7. Polar waters are acidifying faster than they are elsewhere. The corrosive waters will spread from there. The article sketches the effect on marine life.
<a href="https://e360.yale.edu/features/why-rising-acidification-poses-a-special-peril-for-warming-arctic-waters">
https://e360.yale.edu/features/why-rising-acidification-poses-a-special-peril-for-warming-arctic-waters</a></span></p>
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