Articles | Volume 15, issue 2
Clim. Past, 15, 795–809, 2019
https://doi.org/10.5194/cp-15-795-2019
Clim. Past, 15, 795–809, 2019
https://doi.org/10.5194/cp-15-795-2019

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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Cited articles

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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.