Home > Disarmament > Nuclear War, Nuclear Winter, and Human Extinction | Federation Of American Scientists

Nuclear War, Nuclear Winter, and Human Extinction | Federation Of American Scientists

While it is impossible to precisely predict all the human impacts that would result from a nuclear winter, it is relatively simple to predict those which would be most profound. That is, a nuclear winter would cause most humans and large animals to die from nuclear famine in a mass extinction event similar to the one that wiped out the dinosaurs.

nuclear-winter-russia-usFollowing the detonation (in conflict) of US and/or Russian launch-ready strategic nuclear weapons, nuclear firestorms would burn simultaneously over a total land surface area of many thousands or tens of thousands of square miles. These mass fires, many of which would rage over large cities and industrial areas, would release many tens of millions of tons of black carbon soot and smoke (up to 180 million tons, according to peer-reviewed studies), which would rise rapidly above cloud level and into the stratosphere. [For an explanation of the calculation of smoke emissions, see Atmospheric effects & societal consequences of regional scale nuclear conflicts.]

Source: Nuclear War, Nuclear Winter, and Human Extinction – Federation Of American Scientists

Steven Starr is the director of the University of Missouri’s Clinical Laboratory Science Program, as well as a senior scientist at the Physicians for Social Responsibility. He has been published in the Bulletin of the Atomic Scientists and the Strategic Arms Reduction (STAR) website of the Moscow Institute of Physics and Technology; he also maintains the website Nuclear Darkness. Starr also teaches a class on the Environmental, Health and Social Effects of nuclear weapons at the University of Missouri.

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