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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.; Vinther, Bo M.; Abbott, M.; Axford, Y.; Bird, B.; Birks, H. J. B.; Bjune, A. E.; Briner, J.; Cook, T.; Chipman, M.; Francus, P.; Gajewski, K.; Geirsdóttir, Á.; Hu, F. S.; Kutchko, B.; Lamoureux, S.; [...]

Recent Warming Reverses Long-Term Arctic Cooling

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  • Media type: E-Article
  • Title: Recent Warming Reverses Long-Term Arctic Cooling
  • Contributor: 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.; Vinther, Bo M.; Abbott, M.; Axford, Y.; Bird, B.; Birks, H. J. B.; Bjune, A. E.; Briner, J.; Cook, T.; Chipman, M.; Francus, P.; Gajewski, K.; Geirsdóttir, Á.; Hu, F. S.; Kutchko, B.; Lamoureux, S.; [...]
  • imprint: American Association for the Advancement of Science (AAAS), 2009
  • Published in: Science
  • Language: English
  • DOI: 10.1126/science.1173983
  • ISSN: 0036-8075; 1095-9203
  • Origination:
  • Footnote:
  • Description: <jats:title>Climate Reversal</jats:title> <jats:p> The climate and environment of the Arctic have changed drastically over the short course of modern observation. <jats:bold> Kaufman <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="5945" page="1236" related-article-type="in-this-issue" vol="325" xlink:href="10.1126/science.1173983">1236</jats:related-article> ) synthesized 2000 years of proxy data from lakes above 60° N latitude with complementary ice core and tree ring records, to create a paleoclimate reconstruction for the Arctic with a 10-year resolution. A gradual cooling trend at the start of the record had reversed by the beginning of the 20th century, when temperatures began to increase rapidly. The long-term cooling of the Arctic is consistent with a reduction in summer solar insolation caused by changes in Earth's orbit, while the rapid and large warming of the past century is consistent with the human-caused warming. </jats:p>