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The impact of Miocene atmospheric carbon dioxide fluctuations on climate and the evolution of terrestrial ecosystems
Open accessAbstract
The Miocene is characterized by a series of key climatic events that led to the founding of the late Cenozoic icehouse mode and the dawn of modern biota. The processes that caused these developments, and particularly the role of atmospheric CO 2 as a forcing factor, are poorly understood. Here we present a CO 2 record based on stomatal frequency data from multiple tree species. Our data show striking CO 2 fluctuations of ≈600–300 parts per million by volume (ppmv). Periods of low CO 2 are contemporaneous with major glaciations, whereas elevated CO 2 of 500 ppmv coincides with the climatic optimum in the Miocene. Our data point to a long-term coupling between atmospheric CO 2 and climate. Major changes in Miocene terrestrial ecosystems, such as the expansion of grasslands and radiations among terrestrial herbivores such as horses, can be linked to these marked fluctuations in CO 2 .
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Cites
Atmospheric carbon dioxide concentrations over the past 60 million years
Pearson, P. N., & Palmer, M. R. (2000) · Nature · doi:10.1038/35021000 · Cited by 1,771
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Modestou, S. E., Leutert, T. J., Fernandez, A., Lear, C. H., & Meckler, A. N. (2020) · Paleoceanography and Paleoclimatology · doi:10.1029/2020pa003927 · Cited by 57
Metadata
- Authors
- Kürschner, W. M., Kvaček, Z., & Dilcher, D. L.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2008-01-15
- Volume
- 105
- Issue
- 2
- Pages
- 449-453
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2051680091
- Cited by
- 455
- References
- 1
- FWCI
- 23.67
- Type
- journal article
- Language
- en
- Open access
- green
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- Kürschner, W. M., Kvaček, Z., & Dilcher, D. L. (2008). The impact of Miocene atmospheric carbon dioxide fluctuations on climate and the evolution of terrestrial ecosystems. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0708588105
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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