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Science 14 July 2000:
Vol. 289. no. 5477, pp. 253 - 254
DOI: 10.1126/science.289.5477.253
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Perspectives

CLIMATE CHANGE:
Lessons for a New Millennium

Michael E. Mann

The climate changes believed to have occurred before this century have remained enigmatic, hampering our understanding of today's climatic changes. Reseachers trying to assess the human influence on the warming of the past century have commonly used complex ocean atmosphere models, but these models have their drawbacks. In his Perspective, Mann discusses a research article by Crowley, who has used a simple model driven by the most important natural and human-induced climate forcings to simulate climatic change over the last millennium. Comparing the model results with observations, Crowley makes what may be the most compelling case to date for the assertion that anthropogenic greenhouse gas increases are behind the dramatic continued warming of the globe.

The author is in the Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22902, USA. E-mail: mann{at}virginia.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The Evolution of Climate Over the Last Millennium.
P. D. Jones, T. J. Osborn, and K. R. Briffa (2001)
Science 292, 662-667
   Abstract »    Full Text »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)