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Froese DG, Westgate JA, Reyes AV, et al. Ancient permafrost and a future, warmer Arctic. Science. 2008;321(5896):1648doi: 10.1126/science.1157525.
Froese, D. G., Westgate, J. A., Reyes, A. V., Enkin, R. J., & Preece, S. J. (2008). Ancient permafrost and a future, warmer Arctic. Science (New York, N.Y.), 321(5896), 1648. https://doi.org/10.1126/science.1157525
Froese, Duane G, et al. "Ancient permafrost and a future, warmer Arctic." Science (New York, N.Y.) vol. 321,5896 (2008): 1648. doi: https://doi.org/10.1126/science.1157525
Froese DG, Westgate JA, Reyes AV, Enkin RJ, Preece SJ. Ancient permafrost and a future, warmer Arctic. Science. 2008 Sep 19;321(5896):1648. doi: 10.1126/science.1157525. PMID: 18801991.
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Science. 2008 Sep 19;321(5896):1648. doi: 10.1126/science.1157525.

Ancient permafrost and a future, warmer Arctic.

Science (New York, N.Y.)

Duane G Froese, John A Westgate, Alberto V Reyes, Randolph J Enkin, Shari J Preece

Affiliations

  1. Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T5M 0M3, Canada. [email protected]

PMID: 18801991 DOI: 10.1126/science.1157525

Abstract

Climate models predict extensive and severe degradation of permafrost in response to global warming, with a potential for release of large volumes of stored carbon. However, the accuracy of these models is difficult to evaluate because little is known of the history of permafrost and its response to past warm intervals of climate. We report the presence of relict ground ice in subarctic Canada that is greater than 700,000 years old, with the implication that ground ice in this area has survived past interglaciations that were warmer and of longer duration than the present interglaciation.

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