A new annual analysis of progress toward meeting the 2C Paris target. There is a “catastrophic gap” between actions being taken and those that are required to sufficiently reduce emissions. The current pledges are much too weak and there is a missing sense of urgency. Even if fulfilled a temperature rise of 3C would be the likely outcome. Among the recommendations, “Phasing out coal plants and avoiding building new ones is no longer a choice, it is an imperative.”
https://phys.org/news/2017-10-shortfall-climate-action-catastrophic.html
https://phys.org/news/2017-10-shortfall-climate-action-catastrophic.html
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Future volcanoes will have effects that differ from comparable ones in the past. A new study explains how changes in ocean surface temperatures and stratification will have less of a moderating effect on the way volcanoes change the weather for several years. The cooling effect could be intensified by something like 40%, which for a major volcano similar to Tambora would be a real disaster.
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There is a new theory about those two giant boulders in the Bahamas that were moved quite some distance upward by wave action. James Hansen, Paul Hearty and other scientists have suggested that only a really violent superstorm could possibly accomplish such a feat. A new team has figured out a less dramatic process, also in a time when sea level was higher, but with propulsion from a more ordinary hurricane. No matter what, it is a topic of great mystery and fascination.
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A spotlight on the use of energy to heat and cool buildings. Demand is rapidly increasing due to the growth of middle classes in developing nations, as more people seek “thermal comfort.” It is not easy to replace fossil fuels and solutions involving better materials and efficiency technologies need to be greatly strengthened.
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A new report from Lancet about the impact of climate change on human health. Here the report is reviewed by Carbon Brief, with commentary from one of the authors. It statistically covers and charts a number of trends that are now in effect and likely to worsen.
—Further commentary from Christiana Figueres, a principal organizer of the Paris conference and now an advisor to Lancet:
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There are important developments toward the creation of renewable jet fuel that would be practical and affordable: