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News and Views
Nature 441, 579-581 (1 June 2006) | doi:10.1038/441579a; Published online 31 May 2006
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Climate Change: The Arctic tells its story
Heather M. Stoll1
Abstract
The Arctic is one of the sensitive pressure points for Earth's climate. A new sediment core reveals much more about the region's role in a long-term transition from 'greenhouse' to 'icehouse' conditions.
Just as a white T-shirt keeps us cooler on a hot sunny day, a blanket of reflective snow and sea ice over the polar regions reduces the amount of sunlight the Earth absorbs. Ice and snow cover grows in response to cooling temperatures, and so amplifies climate change.
- Heather M. Stoll is in the Departamento de Geología, Universidad de Oviedo, Spain, and the Department of Geosciences, Williams College, Williamstown, Massachusetts 01267, USA.
Email: heather.m.stoll@williams.edu
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