..."Our research supports that there would be worldwide destruction," said Michael Mills, co-author of the study and a research scientist at the University of Colorado at Boulder. "It demonstrates that a small-scale regional conflict is capable of triggering larger ozone losses globally than the ones that were previously predicted for a full-scale nuclear war."
Combined with the climatic impact of a regional nuclear war -- which could reduce crop yields and starve hundreds of millions -- Mills' modeling shows that the entire globe would feel the repercussions of a hundred nuclear detonations, a small fraction of just the U.S. stockpile. After decades of Cold War research into the impacts that a full-blown war between the Soviet Union and the United States would have had on the globe, recent work has focused on regional nuclear wars, which are seen as more likely than all-out nuclear Armageddon. Incorporating the latest atmospheric modeling, the scientists are finding that even a small nuclear conflict would wreak havoc on the global environment (.pdf) -- cooling it twice as much as it's heated over the last century -- and on the structure of the atmosphere itself.
Mills' work, which appears online today in the Proceedings of the National Academies of Science, used a model from National Center for Atmospheric Research to look at the impact of throwing 5 million metric tons of black carbon, or soot, into the atmosphere. [continued]
