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It Turns Out Wildfires Rather than the Pandemic Left the Biggest Environmental Impact in 2020

It Turns Out Wildfires Rather than the Pandemic Left the Biggest Environmental Impact in 2020
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Steve Vavrus :: UW–Madison Experts

Senior scientist, Nelson Institute Center for Climatic Research Nelson Institute of Environmental Studies Work: 608-265-5279 Topics Using numerical models to assess simulated changes in Earth s climate in the past (paleoclimate) and future Ongoing and future Arctic climatic change, including societal impacts and effects outside of polar regions Weather and climate in the Great Lakes region, especially Wisconsin Achievements Scientific Steering Committee Member of CESM (Community Earth System Model) Chair of American Meteorological Society s Polar Meteorology and Oceanography Committee, 2007-2009 Tags

Clouds of self-levitating soot might help halt global warming

However, mimicking the explosive powers of Earth s supervolcanoes is not easy. The volcanic cloud generated by Mount Pinatubo contained 15 million tons of sulfur dioxide and reached up to the altitude of 21 miles (34 kilometers). For months, the sulfur dioxide particles remained suspended in the stratosphere, the second layer of the atmosphere that extends between the altitudes of 9 to 30 miles (15 to 50 km). The ability of these particles to reflect solar radiation resulted in somewhat less sunlight reaching the lower levels of the atmosphere, which then experienced an overall cooling. Solar-powered soot Authors of a new study, published in the journal Science Advances on Friday (May 14), argue that hauling such massive quantities of sun-reflecting aerosol to such high altitudes is beyond the capabilities of any existing aircraft, and developing new technologies to do as much would be too costly and time-consuming.

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