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Did El Niño make societies bloom?
The appearance of El Niño 5,000 years ago correlates with the growth of more complex societies in Peru.
References:
Rodbell, D.T., et al. 1999. An ~15,000-year record of El Niño-driven alluviation in southwestern Ecuador. Science 283(Jan. 22):516.
Sandweiss, D.H., K.A. Maasch, and D.G. Anderson. 1999. Transitions in the mid-Holocene. Science 283(Jan. 22):499.
Sources:
Donald T. Rodbell
Union College
Department of Geology
Schenectady, NY 12308-2311
Daniel H. Sandweiss
University of Maine
Department of Anthropology
Institute for Quaternary Studies
Orono, ME 04469
From Science News, Vol. 155, No. 7, February 13, 1999, p. 107. Copyright © 1999, Science Service.
