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Article: North Pole ice: any thinning in sight? (changes in ice thickness in Arctic ocean probably unrelated to climactic warming) (Brief Article)
- Article from:
- Science News
- Article date:
- December 24, 1994
CopyrightCOPYRIGHT 1994 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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When searching for signs of global greenhouse warming, many researchers look north because computer climate models predict temperatures will rise most dramatically over the Arctic Ocean. In theory, the warming will manifest itself by thinning the pervasive sea ice in that region. But a comprehensive study of sea ice measurements at and near the North Pole indicates that nature will not make it easy to pick out the fingerprint of greenhouse warming there.
The study focuses on data collected during 12 voyages of U.S. nuclear submarines spanning the years 1958 through 1992. Over this period, sea ice thickness varied markedly from voyage to voyage, showing no ...