The latest thinking about solar radiation management (Carbon Brief). This is a type of geoengineering that could reduce the amount of heat Earth absorbs from the sun without doing a job on CO2 emissions or content in the atmosphere. There are six different approaches that would probably be effective, but all have potential risks and drawbacks. If everything less risky fails, which currently looms as a likelihood, and the damage from climate change becomes unbearable, this may be the only feasible option on the table.
https://www.carbonbrief.org/explainer-six-ideas-to-limit-global-warming-with-solar-geoengineering
https://www.carbonbrief.org/explainer-six-ideas-to-limit-global-warming-with-solar-geoengineering
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David Spratt, who writes the Climate Code Red posts, describes the nature of the danger we are in right now. His work is buttressed with numerous links that give reference to source material that is scientifically based. David suggests that the best answer lies with negative emissions operations, which is fine if they work at the necessary scale and can be financed. If not, the stage will quickly be set for those pushing an alternative program of solar radiation management as described in the story above.
http://www.climatecodered.org/2018/05/what-goes-up-must-come-down-its-time.html?
http://www.climatecodered.org/2018/05/what-goes-up-must-come-down-its-time.html?
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An explanation of how ice shelves melt around Antarctica, what the effects are like, and how it differs from the Arctic, by John Abraham. This piece includes information from new research studies and is especially helpful in gaining an understanding of the effects on deep water formation, which has an essential role in maintaining proper circulation of the entire range of global oceans.
https://www.theguardian.com/environment/climate-consensus-97-per-cent/2018/may/09/global-warming-is-melting-antarctic-ice-from-below
https://www.theguardian.com/environment/climate-consensus-97-per-cent/2018/may/09/global-warming-is-melting-antarctic-ice-from-below
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The Arctic Ocean meanwhile is seeing an intrusion of increased volumes of warm water from both the Atlantic and Pacific entry points. This report from Yale e360, which is mainly about the large ecosystem effects, also tells about the weakening of sea ice by reducing its rate of formation in the winter, and more.
https://e360.yale.edu/features/alien-waters-neighboring-seas-are-flowing-into-a-warming-arctic-ocean
https://e360.yale.edu/features/alien-waters-neighboring-seas-are-flowing-into-a-warming-arctic-ocean
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Paleoclimate science: A new theory sees a link between the origin of plate tectonics and the formation of an Earth completely covered by snow and ice about 700 million years ago. Just like today, a major shift in Earth’s operating system, then caused by the origin of plate tectonics, caused a major shift in climate, only that time with the result that the climate took off in a completely different direction.
https://www.sciencedaily.com/releases/2018/05/180507153141.htm
https://www.sciencedaily.com/releases/2018/05/180507153141.htm
Carl