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Science 9 June 2006:
Vol. 312. no. 5779, p. 1437
DOI: 10.1126/science.312.5779.1437b
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This Week in Science

During the Pliocene, solar insolation and CO2 levels were similar to present conditions, but the poles were warm enough that there were no ice sheets in the Northern Hemisphere, and sea level was 25 meters higher than at present. Fedorov et al. (p. 1485; see the news story by Kerr) review observations of and theories about climate in the early Pliocene (from 5 to 3 million years ago) and discuss how these might be reconciled.




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