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Article: Old idea may solve conundrum. (research on carbon dioxide effects on atmosphere)
- Article from:
- Science News
- Article date:
- August 29, 1992
- Author:
CopyrightCOPYRIGHT 1992 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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If the past is truly the key to the future, then researchers interested in forecasting the expected greenhouse warning must understand how carbon dioxide gas participated in the geologically recent ice ages.
Climate experts have known for more than a decade that atmospheric concentrations of this heat-trapping gas fluctuated wildly from warm periods to cold ones. But scientists still lack a satisfactory theory to explain how levels of carbon dioxide could vary so drastically as the ice sheets waxed and waned. Two researchers are now dusting off a previously discarded idea that they say may solve this problem.
In 1980, bubbles of ancient air recovered ...
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