Recent warming reverses long-term Arctic cooling

Kaufman, Darrell S., Schneider, David P., McKay, Nicholas P., Ammann, Caspar M., Bradley, Raymond S., Briffa, Keith R., Miller, Gifford H., Otto-Bliesner, Bette L., Overpeck, Jonathan T. and Vinther, Bo M. and Arctic Lakes 2k Project Members (2009) Recent warming reverses long-term Arctic cooling. Science, 325 (5945). pp. 1236-1239. ISSN 1095-9203

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Abstract

The temperature history of the first millennium C.E. is sparsely documented, especially in the Arctic. We present a synthesis of decadally resolved proxy temperature records from poleward of 60°N covering the past 2000 years, which indicates that a pervasive cooling in progress 2000 years ago continued through the Middle Ages and into the Little Ice Age. A 2000-year transient climate simulation with the Community Climate System Model shows the same temperature sensitivity to changes in insolation as does our proxy reconstruction, supporting the inference that this long-term trend was caused by the steady orbitally driven reduction in summer insolation. The cooling trend was reversed during the 20th century, with four of the five warmest decades of our 2000-year-long reconstruction occurring between 1950 and 2000.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Environmental Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Climatic Research Unit Faculty of Science > Research Groups > Marine and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Climate, Ocean and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences
Depositing User:	Users 2731 not found.
Date Deposited:	05 Mar 2012 14:29
Last Modified:	14 Jul 2023 15:30
URI:	https://ueaeprints.uea.ac.uk/id/eprint/37844
DOI:	10.1126/science.1173983

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