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Science 28 April 2000:
Vol. 288. no. 5466, pp. 589 - 590
DOI: 10.1126/science.288.5466.589a

News of the Week

GLOBAL WARMING:
Draft Report Affirms Human Influence

Richard A. Kerr

For the past several years, an international panel of climate scientists has been testing alternatives to the idea that people are affecting global climate, but none of the factors they examined fit the past century's observed warming as well as did an increase in greenhouse gases generated by human activity. So last week, the group, the United Nations-sponsored Intergovernmental Panel on Climate Change, released the draft of a new report concluding "that there has been a discernible human influence on global climate." If those words hold up under further expert and governmental review, they would be the strongest official pronouncement yet that human-induced warming is real.

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