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Letters to Nature
Nature 258, 697 - 698 (25 December 1975); doi:10.1038/258697a0

Possible climatic impact of tropical deforestation

GERALD L. POTTER, HUGH W. ELLSAESSER, MICHAEL C. MACCRACKEN & FREDERICK M. LUTHER

Atmospheric Sciences Division, Lawrence Livermore Laboratory, Livermore, California 94550

OF the various mechanisms suggested by which man might change the planetary climate, the removal of tropical rain forests to increase arable acreage seems to be one of the more imminent. For this reason we selected this as one of the first problems to be tested in our recently updated climate model. Bearing in mind the fallibility of computer simulations, we find overall global cooling and a reduction in precipitation: a larger tropical reduction being almost balanced by a subtropical increase.

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References

1. MacCracken, M. C., and Luther, F. M., in Proc. IAMAP/IAPSO Int. Conf. Structure, Composition and General Circ. of the Upper and Lower Atmos. and Possible Anthropogenic Perturbations, Jan. 14–25, 1974, Melbourne, Australia, II, 1107–1128 (Atmos. Environ. Svc., Ontario, Canada, 1974).
2. Luther, F. M., Paper 73–498, AIAA/AMS Int. Conf. on the Environ. Impact of Aerospace Opns. in the High Atmos., Denver, Colorado, June 11–13 (1973).
3. Stone, P. H., J. atmos. Sci., 29, 405–418 (1972); ibid., 30, 521–529 (1973).
4. MacCracken, M. C., in Proc. 4th Conf. on CIAP, Cambridge, Mass., Rept. No. DOT-TSC-OST-75–38 (1975).
5. Sellers, W. D., Physical Climatology, 5 (University of Chicago Press, Chicago, 1965).
6. Charney, J. G., Stone, P. H., and Quirk, W. J., Science, 187, 434–435 (1975).



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