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Volume 156, Number 1 (July 3, 1999)

References & Sources
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Reading the leaves for climate clues

Ancient birch leaves raise questions about prehistoric concentrations of carbon dioxide.

References:

Indermühle, A., et al. 1999. Holocene carbon-cycle dynamics based on CO2 trapped in ice at Taylor Dome, Antarctica.

Wagner, F., et al. 1999. Century-scale shifts in early Holocene atmospheric CO2 concentration. Science 284(June 18):1971.

Sources:

Andreas Indermühle
University of Bern
Climate and Environmental Physics
Physics Institute
Sidlerstrasse 5
CH-3012 Bern
Switzerland

Friederike Wagner
Utrecht University
Laboratory of Palaeobotany and Palynology
Budapestlaan 4
3584 CD Utrecht
The Netherlands

From Science News, Vol. 156, No. 1, July 3, 1999, p. 12. Copyright © 1999, Science Service.

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