Articles | Volume 15, issue 2
Clim. Past, 15, 795–809, 2019
Clim. Past, 15, 795–809, 2019

Research article 17 Apr 2019

Research article | 17 Apr 2019

Sensitivity of a leaf gas-exchange model for estimating paleoatmospheric CO2 concentration

Dana L. Royer et al.

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The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database
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Geosci. Model Dev., 12, 3149–3206,,, 2019
Short summary

Cited articles

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Beerling, D. J.: Evolutionary responses of land plants to atmospheric CO2, in: A History of Atmospheric CO2 and Its Effects on Plants, Animals, and Ecosystems, edited by: Ehleringer, J. R., Cerling, T. E., and Dearing, M. D., Springer, New York, 114–132, 2005. 
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Short summary
Plant-based proxies for estimating atmospheric CO2 in the geologic past are becoming more popular. Here we test the reliability of a method based on leaf gas-exchange principles in a wide range of living plants. Overall, the average error rate (~28 %) is broadly similar to other paleo-CO2 proxies. Our results should increase confidence in using this recently developed method.