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Article: Ice Sheets Drive Atmospheric Carbon Dioxide Levels, Inverting Previous Ice-Age Theory, New Study Shows.
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- Ascribe Higher Education News Service
- Article date:
- July 24, 2006
CopyrightCOPYRIGHT 2006 AScribe. 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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Byline: University of Virginia
CHARLOTTESVILLE, Va., July 24 (AScribe Newswire) -- In the early 20th century, Milutin Milankovitch, a leading astronomer and climatologist of the time, proposed that the Earth's ice-age cycles could be predicted because they correspond directly with routine changes in the Earth's orbit and its tilt over cycles of tens of thousands of years. Because of these changes, there are predictable variations in the amount of solar radiation striking the Earth's surface. Milankovitch argued that low levels of summer radiation permit snow to accumulate as permanent ice, while high levels of solar radiation melt snow and ice.
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