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Originally published in Science Express on 9 August 2007
Science 7 September 2007:
Vol. 317. no. 5843, pp. 1333 - 1334
DOI: 10.1126/science.1147470
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Perspectives

GEOCHEMISTRY:
"C"ing Arctic Climate with Black Ice

Richard B. Alley

New ice-core measurements suggest that soot influenced recent Arctic climate change.

The author is in the Department of Geosciences, Pennsylvania State University, University Park, PA 16802, USA. E-mail: rba6{at}psu.edu

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