[预告]07.15全球院讲座：Human Emissions of Particles to the Stratosphere from Geoengineering or Nuclear Winter: a Bad Idea and a Very Bad Idea

　 　时间： 2016.7.15（星期五）9:30-11:30

　　地点： 京师科技大厦B座520会议室
 
　　 报告人： Alan Robock ，Department of Environmental Sciences, Rutgers University

　 　主持人： Professor John Moore

　　 报告人介绍：

　　Alan Robock is currently distinguished Professor in the Department of Environmental Sciences at Rutgers University, New Jersey. He is an IPCC lead author. Current research focuses on geoengineering, climatic effects of nuclear weapons, soil moisture variations, the effects of volcanic eruptions on climate, and the impacts of climate change on human activities.  He has published more than 370 articles, including more than 220 peer-reviewed papers, 9600 citations and H=57 (ResearcherID). Past president of AGU Atmospheric sciences section, editor of Reviews of Geophysics, Fellow of the American Meteorological Society. He advocates nuclear disarmament and has met with Fidel Castro during a lecture trip to Cuba discuss the dangers of nuclear weapons。

　　内容简介：

　　There are two ways that humans can put particles into the stratosphere, either inadvertently from a nuclear war, or advertently to emulate a volcano to try to counteract global warming, which is called geoengineering or climate engineering.  A nuclear war would burn cities and industrial areas, putting large quantities of smoke into the stratosphere.  Suggestions for geoengineering involve injection of sulfur dioxide gas (SO2) into the stratosphere from planes, balloons, or artillery, which would produce sulfuric acid droplets.

　　We have conducted climate model simulations of these anthropogenic stratospheric aerosol injections and find that both would have severe negative consequences for the Earth.  Global efforts to reduce greenhouse gas emissions and to adapt to climate change are a much better way to channel our resources to address anthropogenic global warming.

　　A nuclear war between any two nuclear powers, such as India and Pakistan or India and China, with each country using 50 Hiroshima-sized atom bombs, could produce climate change unprecedented in recorded human history and global-scale ozone depletion.  Furthermore, a large-scale conflict between the U.S. and Russia could still produce nuclear winter.  The effects of regional and global nuclear war would last for more than a decade, much longer than previously thought.