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Nuclear Winter: A Matter of Degrees

SEP 01, 1985
The major climatic effects from nuclear war would come from soot generated by urban fires; much research will be needed to clarify the uncertainties.

DOI: 10.1063/1.880989

Tony Rothman

Although climatic impacts have long been on the list of potential consequences of nuclear war, two years ago they were predicted to be so devastating as to earn the label, “nuclear winter.” That term describes a world that is plunged into cold and darkness because the sunlight is blocked by smoke from fires ignited by nuclear explosions and by the dust from nuclear groundbursts. This vision is considerably more severe than any painted earlier because the calculations for the first time included massive injections of soot, the carbonaceous component of smoke. The soot strongly absorbs the incoming sunlight but transmits most of the outgoing infrared radiation, creating an inverse greenhouse effect.

References

  1. 1. National Research Council, “Long‐Term Worldwide Effects of Multiple Nuclear Weapons Detonations,” NAS (1975).

  2. 2. National Research Council, “The Effects on the Atmosphere of a Major Nuclear Exchange,” NAS (1985).

  3. 3. R. B. Stothers, Science 224, 1191 (1984).https://doi.org/SCIEAS

  4. 4. H. Stommel, E. Stommel, Sci. Am., June 1979, p. 176.

  5. 5. L. W. Alvarez, W. Alvarez, F. Asaro, H. W. Michel, Science 208, 1095 (1980).https://doi.org/SCIEAS

  6. 6. H. Wexler, Weatherwise, December 1950, p. 129.

  7. 7. R. U. Ayres, Environmental Effects of Nuclear Weapons, Vol. 2, Hudson Inst., (1965) report number HI 518;
    E. S. Batten, “The Effects of Nuclear War on the Atmosphere and Climate,” Rand Corp. Study RM‐4989‐TAB (1966).

  8. 8. P. J. Crutzen, J. W. Birks, Ambio 11, 114 (1982);
    reprinted in The Aftermath, Pantheon, New York (1983).

  9. 9. R. P. Turco, O. B. Toon, T. P. Ackerman, J. B. Pollack, C. Sagan, Science 222, 1283 (1983).https://doi.org/SCIEAS

  10. 10. Concise Report on The World Population in 1979, UN Dept. Int. Economic and Social Affairs, Population Studies, ST/ESA/SER.A/72 (1980).

  11. 11. M. C. McCracken, J. J. Walton, “The effects of interactive transport and scavenging of smoke on the calculated temperature change resulting from large amounts of smoke,” Lawrence Livermore preprint UCRL‐91446, December 1984.

  12. 12. R. C. Malone, L. H. Auer, G. A. Glatzmaier, M. C. Wood, O. B. Toon, “The influence of solar heating and precipitation scavenging on the lifetime of smoke from a nuclear war,” to be published in Science.

  13. 13. S. L. Thompson, “Global interactive transport simulations of nuclear war smoke,” to be published in Nature.

  14. 14. R. D. Cess, G. L. Potter, S. J. Ghan, W. L. Gates, “The climatic effects of large injections of atmospheric smoke and dust: A study of climate feedback mechanisms with one‐ and three‐dimensional climate models,” Lawrence Livermore preprint UCRL‐92504, April 1985.

  15. 15. B. G. Levi, T. Rothman, Nuclear Winter: A Review of the Key Factors, CEES 197, Princeton Univ., in preparation.

  16. 16. R. D. Small, B. W. Bush, Science, 229, 465 (1985).

  17. 17. “An analysis of civil defense in nuclear war,” ACDA, December 1978.

  18. 18. C. G. Culver, “Survey results for fire loads and live loads in office buildings,” NBS report NBS‐BSS‐85, PB‐253 226, May 1976;
    Attack Environment Manual, CPG 2‐1A3, FEMA (1982);
    D. A. Larson, R. D. Small, “Analysis of the large scale urban fire environment part II: Parametric analysis and model city simulations,” Pacific Sierra Research Corp. report 1210, November 1982.

  19. 19. V. Ramaswamy, J. T. Kiehl, J. Geophys. Res. 90, July 1985.https://doi.org/JGREA2

  20. 20. P. J. Crutzen, I. E. Galbally, C. Brühl, Climatic Change 6, 323 (1984).https://doi.org/CLCHDX

  21. 21. H. R. Pruppacher, J. D. Klett, Microphysics of Clouds and Precipitation, Reidel, Dordrecht, (1978).

  22. 22. G. F. Carrier, F. E. Fendell, P. S. Feldman, Firestorms, Defense Nuclear Agency, DNA‐TR‐81‐102 (1982).

  23. 23. C. Covey, S. H. Schneider, S. L. Thompson, Nature 308, 21 (1984).https://doi.org/NATUAS

More about the Authors

Barbara Goss Levi. Princeton University.

Tony Rothman. University of Capetown, South Africa.

This Content Appeared In
pt-cover_1985_09.jpeg

Volume 38, Number 9

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