Variations in atmospheric methane concentration during the Holocene epoch
RECORDS of the variation in atmospheric methane concentration have been obtained from ice cores for the past 1,000 years and for the period 8,000-220,000 yr BP (refs 1-4), but data for the intervening period, spanning most of the present interglacial period (Holocene), are patchy (refs 5-7 and refer...
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Online Access: | https://doi.org/10.1038/374046a0 http://infoscience.epfl.ch/record/298400 |
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ftinfoscience:oai:infoscience.epfl.ch:298400 2023-05-15T16:29:02+02:00 Variations in atmospheric methane concentration during the Holocene epoch Blunier, T. Chappellaz, J. Schwander, J. Stauffer, B. Raynaud, D. 2022-11-23T16:12:13Z https://doi.org/10.1038/374046a0 http://infoscience.epfl.ch/record/298400 unknown London, Springer Science and Business Media LLC doi:10.1038/374046a0 isi:A1995QK07900047 http://infoscience.epfl.ch/record/298400 http://infoscience.epfl.ch/record/298400 Text 2022 ftinfoscience https://doi.org/10.1038/374046a0 2023-02-13T23:12:34Z RECORDS of the variation in atmospheric methane concentration have been obtained from ice cores for the past 1,000 years and for the period 8,000-220,000 yr BP (refs 1-4), but data for the intervening period, spanning most of the present interglacial period (Holocene), are patchy (refs 5-7 and references therein). Here we present a continuous, high-resolution record of atmospheric methane from 8,000 to 1,000 yr BP, from the GRIP ice core in central Greenland. Unlike most other climate proxies from ice cores (such as oxygen isotope composition8 and electrical conductivity9), methane concentrations show significant variations - up to 15% - during the Holocene. We have proposed1 that variations in the hydrological cycle at low latitudes are the dominant control on past levels of atmospheric methane. This is now supported by the observation that the lowest methane concentrations in our new record occur in the mid-Holocene, when many tropical lakes dried up10. The concentration increases during the Late Holocene, probably owing to an increasing contribution from northern wetlands. © 2002 Nature Publishing Group. Text Greenland GRIP ice core EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) Greenland Nature 374 6517 46 49 |
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EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) |
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ftinfoscience |
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RECORDS of the variation in atmospheric methane concentration have been obtained from ice cores for the past 1,000 years and for the period 8,000-220,000 yr BP (refs 1-4), but data for the intervening period, spanning most of the present interglacial period (Holocene), are patchy (refs 5-7 and references therein). Here we present a continuous, high-resolution record of atmospheric methane from 8,000 to 1,000 yr BP, from the GRIP ice core in central Greenland. Unlike most other climate proxies from ice cores (such as oxygen isotope composition8 and electrical conductivity9), methane concentrations show significant variations - up to 15% - during the Holocene. We have proposed1 that variations in the hydrological cycle at low latitudes are the dominant control on past levels of atmospheric methane. This is now supported by the observation that the lowest methane concentrations in our new record occur in the mid-Holocene, when many tropical lakes dried up10. The concentration increases during the Late Holocene, probably owing to an increasing contribution from northern wetlands. © 2002 Nature Publishing Group. |
format |
Text |
author |
Blunier, T. Chappellaz, J. Schwander, J. Stauffer, B. Raynaud, D. |
spellingShingle |
Blunier, T. Chappellaz, J. Schwander, J. Stauffer, B. Raynaud, D. Variations in atmospheric methane concentration during the Holocene epoch |
author_facet |
Blunier, T. Chappellaz, J. Schwander, J. Stauffer, B. Raynaud, D. |
author_sort |
Blunier, T. |
title |
Variations in atmospheric methane concentration during the Holocene epoch |
title_short |
Variations in atmospheric methane concentration during the Holocene epoch |
title_full |
Variations in atmospheric methane concentration during the Holocene epoch |
title_fullStr |
Variations in atmospheric methane concentration during the Holocene epoch |
title_full_unstemmed |
Variations in atmospheric methane concentration during the Holocene epoch |
title_sort |
variations in atmospheric methane concentration during the holocene epoch |
publisher |
London, Springer Science and Business Media LLC |
publishDate |
2022 |
url |
https://doi.org/10.1038/374046a0 http://infoscience.epfl.ch/record/298400 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland GRIP ice core |
genre_facet |
Greenland GRIP ice core |
op_source |
http://infoscience.epfl.ch/record/298400 |
op_relation |
doi:10.1038/374046a0 isi:A1995QK07900047 http://infoscience.epfl.ch/record/298400 |
op_doi |
https://doi.org/10.1038/374046a0 |
container_title |
Nature |
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374 |
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6517 |
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46 |
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49 |
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1766018732100943872 |