Ancient Permafrost and a Future, Warmer Arctic
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...
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American Association for the Advancement of Science (AAAS)
2008
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Online Access: | http://dx.doi.org/10.1126/science.1157525 https://www.science.org/doi/pdf/10.1126/science.1157525 |
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craaas:10.1126/science.1157525 2024-09-30T14:30:35+00:00 Ancient Permafrost and a Future, Warmer Arctic Froese, Duane G. Westgate, John A. Reyes, Alberto V. Enkin, Randolph J. Preece, Shari J. 2008 http://dx.doi.org/10.1126/science.1157525 https://www.science.org/doi/pdf/10.1126/science.1157525 en eng American Association for the Advancement of Science (AAAS) Science volume 321, issue 5896, page 1648-1648 ISSN 0036-8075 1095-9203 journal-article 2008 craaas https://doi.org/10.1126/science.1157525 2024-09-12T04:01:13Z 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. Article in Journal/Newspaper Arctic Global warming Ice permafrost Subarctic AAAS Resource Center (American Association for the Advancement of Science) Arctic Canada Science 321 5896 1648 1648 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Froese, Duane G. Westgate, John A. Reyes, Alberto V. Enkin, Randolph J. Preece, Shari J. |
spellingShingle |
Froese, Duane G. Westgate, John A. Reyes, Alberto V. Enkin, Randolph J. Preece, Shari J. Ancient Permafrost and a Future, Warmer Arctic |
author_facet |
Froese, Duane G. Westgate, John A. Reyes, Alberto V. Enkin, Randolph J. Preece, Shari J. |
author_sort |
Froese, Duane G. |
title |
Ancient Permafrost and a Future, Warmer Arctic |
title_short |
Ancient Permafrost and a Future, Warmer Arctic |
title_full |
Ancient Permafrost and a Future, Warmer Arctic |
title_fullStr |
Ancient Permafrost and a Future, Warmer Arctic |
title_full_unstemmed |
Ancient Permafrost and a Future, Warmer Arctic |
title_sort |
ancient permafrost and a future, warmer arctic |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2008 |
url |
http://dx.doi.org/10.1126/science.1157525 https://www.science.org/doi/pdf/10.1126/science.1157525 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Global warming Ice permafrost Subarctic |
genre_facet |
Arctic Global warming Ice permafrost Subarctic |
op_source |
Science volume 321, issue 5896, page 1648-1648 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.1157525 |
container_title |
Science |
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321 |
container_issue |
5896 |
container_start_page |
1648 |
op_container_end_page |
1648 |
_version_ |
1811635464623357952 |