Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries
Precise and continuous measurements of atmospheric CO2 concentration were first begun in 1958 and show a clear increase from 315 parts per million by volume (p.p.m.v.)1 then to 345 p.p.m.v. now. A detailed knowledge of the CO2 increase since preindustrial time is a prerequisite for understanding sev...
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ftunivbern:oai:boris.unibe.ch:158251 2023-08-20T04:02:38+02:00 Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries Neftel, A. Moor, E. Oeschger, H. Stauffer, B. 1985 application/pdf https://boris.unibe.ch/158251/1/315045a0.pdf https://boris.unibe.ch/158251/ eng eng Nature Publishing Group https://boris.unibe.ch/158251/ info:eu-repo/semantics/restrictedAccess Neftel, A.; Moor, E.; Oeschger, H.; Stauffer, B. (1985). Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries. Nature, 315(6014), pp. 45-47. Nature Publishing Group 10.1038/315045a0 <http://dx.doi.org/10.1038/315045a0> 530 Physics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 1985 ftunivbern https://doi.org/10.1038/315045a0 2023-07-31T22:08:01Z Precise and continuous measurements of atmospheric CO2 concentration were first begun in 1958 and show a clear increase from 315 parts per million by volume (p.p.m.v.)1 then to 345 p.p.m.v. now. A detailed knowledge of the CO2 increase since preindustrial time is a prerequisite for understanding several aspects of the role of CO2, such as the contribution of biomass burning to the CO2 increase and the sensitivity of climate to the CO2 concentration in the atmosphere. Estimates of the preindustrial CO2 concentration are in the range 250–290 p.p.m.v. (ref. 2), but the precise level then and the time dependence of the increase to the present levels remain obscure. The most reliable assessment of the ancient atmospheric CO2 concentration is derived from measurements of air occluded in ice cores. An ice core from Siple Station (West Antartica) that allows determination of the enclosed gas concentration with very good time resolution has recently become available. We report here measurements of this core which now allow us to trace the development of the atmospheric CO2 from a period overlapping the Mauna Loa record back over the past two centuries. Article in Journal/Newspaper antartic* ice core BORIS (Bern Open Repository and Information System, University of Bern) Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Nature 315 6014 45 47 |
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Open Polar |
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BORIS (Bern Open Repository and Information System, University of Bern) |
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ftunivbern |
language |
English |
topic |
530 Physics |
spellingShingle |
530 Physics Neftel, A. Moor, E. Oeschger, H. Stauffer, B. Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries |
topic_facet |
530 Physics |
description |
Precise and continuous measurements of atmospheric CO2 concentration were first begun in 1958 and show a clear increase from 315 parts per million by volume (p.p.m.v.)1 then to 345 p.p.m.v. now. A detailed knowledge of the CO2 increase since preindustrial time is a prerequisite for understanding several aspects of the role of CO2, such as the contribution of biomass burning to the CO2 increase and the sensitivity of climate to the CO2 concentration in the atmosphere. Estimates of the preindustrial CO2 concentration are in the range 250–290 p.p.m.v. (ref. 2), but the precise level then and the time dependence of the increase to the present levels remain obscure. The most reliable assessment of the ancient atmospheric CO2 concentration is derived from measurements of air occluded in ice cores. An ice core from Siple Station (West Antartica) that allows determination of the enclosed gas concentration with very good time resolution has recently become available. We report here measurements of this core which now allow us to trace the development of the atmospheric CO2 from a period overlapping the Mauna Loa record back over the past two centuries. |
format |
Article in Journal/Newspaper |
author |
Neftel, A. Moor, E. Oeschger, H. Stauffer, B. |
author_facet |
Neftel, A. Moor, E. Oeschger, H. Stauffer, B. |
author_sort |
Neftel, A. |
title |
Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries |
title_short |
Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries |
title_full |
Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries |
title_fullStr |
Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries |
title_full_unstemmed |
Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries |
title_sort |
evidence from polar ice cores for the increase in atmospheric co2 in the past two centuries |
publisher |
Nature Publishing Group |
publishDate |
1985 |
url |
https://boris.unibe.ch/158251/1/315045a0.pdf https://boris.unibe.ch/158251/ |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) |
geographic |
Siple |
geographic_facet |
Siple |
genre |
antartic* ice core |
genre_facet |
antartic* ice core |
op_source |
Neftel, A.; Moor, E.; Oeschger, H.; Stauffer, B. (1985). Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries. Nature, 315(6014), pp. 45-47. Nature Publishing Group 10.1038/315045a0 <http://dx.doi.org/10.1038/315045a0> |
op_relation |
https://boris.unibe.ch/158251/ |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1038/315045a0 |
container_title |
Nature |
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315 |
container_issue |
6014 |
container_start_page |
45 |
op_container_end_page |
47 |
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1774713185244282880 |