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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 ....

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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. ....

France General , Karen Rosenlof , Us National Center , Atmospheric Research , Atmospheric Administration , Chemical Sciences Laboratory Of The National Oceanic , Community Earth System Model , Mount Pinatubo , Science Advances , Chemical Sciences Laboratory , National Oceanic , பிரான்ஸ் ஜநரல் , எங்களுக்கு தேசிய மையம் , வளிமண்டலம் ஆராய்ச்சி , சமூக பூமி அமைப்பு மாதிரி , இரசாயன அறிவியல் ஆய்வகம் , தேசிய கடல் ,