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Vulnerability of Permafrost Carbon to Climate Change: Implications for the Global Carbon Cycle

Schuur, Edward A. G., Bockheim, James, Canadell, Josep G., Euskirchen, Eugenie, Field, Christopher B., Goryachkin, Sergey V., Hagemann, Stefan, Kuhry, Peter, Lafleur, Peter M., Lee, Hanna, Mazhitova, Galina, Nelson, Frederick E., Rinke, Annette, Romanovsky, Vladimir E., Shiklomanov, Nikolay, Tarnocai, Charles, Venevsky, Sergey, Vogel, Jason G., Zimov, Sergei A.·2008·BioScience

Abstract

Thawing permafrost and the resulting microbial decomposition of previously frozen organic carbon (C) is one of the most significant potential feedbacks from terrestrial ecosystems to the atmosphere in a changing climate. In this article we present an overview of the global permafrost C pool and of the processes that might transfer this C into the atmosphere, as well as the associated ecosystem changes that occur with thawing. We show that accounting for C stored deep in the permafrost more than doubles previous high-latitude inventory estimates, with this new estimate equivalent to twice the atmospheric C pool. The thawing of permafrost with warming occurs both gradually and catastrophically, exposing organic C to microbial decomposition. Other aspects of ecosystem dynamics can be altered by climate change along with thawing permafrost, such as growing season length, plant growth rates and species composition, and ecosystem energy exchange. However, these processes do not appear to be able to compensate for C release from thawing permafrost, making it likely that the net effect of widespread permafrost thawing will be a positive feedback to a warming climate.

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Metadata

Authors
Schuur, E. A. G., Bockheim, J., Canadell, J. G., Euskirchen, E., Field, C. B., Goryachkin, S. V., Hagemann, S., Kuhry, P., Lafleur, P. M., Lee, H., Mazhitova, G., Nelson, F. E., Rinke, A., Romanovsky, V. E., Shiklomanov, N., Tarnocai, C., Venevsky, S., Vogel, J. G., & Zimov, S. A.
Venue
BioScience
Published
2008-09-01
Volume
58
Issue
8
Pages
701-714
ISSN
  • 0006-3568 (ISSN-L)
  • 1525-3244
OpenAlex
W2159200641
Cited by
1,642
References
64
FWCI
41.42
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Vulnerability of Permafrost Carbon to Climate Change: Implications for the Global Carbon Cycle. https://app.cochat.ai/papers/10.1641/b580807
The paper
Schuur, E. A. G., Bockheim, J., Canadell, J. G., Euskirchen, E., Field, C. B., Goryachkin, S. V., Hagemann, S., Kuhry, P., Lafleur, P. M., Lee, H., Mazhitova, G., Nelson, F. E., Rinke, A., Romanovsky, V. E., Shiklomanov, N., Tarnocai, C., Venevsky, S., Vogel, J. G., & Zimov, S. A. (2008). Vulnerability of Permafrost Carbon to Climate Change: Implications for the Global Carbon Cycle. BioScience. https://doi.org/10.1641/b580807

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.