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- Publisher Website: 10.1126/science.1203909
- Scopus: eid_2-s2.0-82755192511
- PMID: 22144622
- WOS: WOS:000297553600046
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Article: The role of carbon dioxide during the onset of Antarctic glaciation
Title | The role of carbon dioxide during the onset of Antarctic glaciation | ||||||||||
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Authors | |||||||||||
Keywords | Carbon dioxide Phosphate Alkenone Climate forcing Glaciation | ||||||||||
Issue Date | 2011 | ||||||||||
Publisher | American Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.org | ||||||||||
Citation | Science, 2011, v. 334 n. 6060, p. 1261-1264 How to Cite? | ||||||||||
Abstract | Earth's modern climate, characterized by polar ice sheets and large equator-to-pole temperature gradients, is rooted in environmental changes that promoted Antarctic glaciation 33.7 million years ago. Onset of Antarctic glaciation reflects a critical tipping point for Earth's climate and provides a framework for investigating the role of atmospheric carbon dioxide (CO(2)) during major climatic change. Previously published records of alkenone-based CO(2) from high- and low-latitude ocean localities suggested that CO(2) increased during glaciation, in contradiction to theory. Here, we further investigate alkenone records and demonstrate that Antarctic and subantarctic data overestimate atmospheric CO(2) levels, biasing long-term trends. Our results show that CO(2) declined before and during Antarctic glaciation and support a substantial CO(2) decrease as the primary agent forcing Antarctic glaciation, consistent with model-derived CO(2) thresholds. | ||||||||||
Persistent Identifier | http://hdl.handle.net/10722/151348 | ||||||||||
ISSN | 2023 Impact Factor: 44.7 2023 SCImago Journal Rankings: 11.902 | ||||||||||
ISI Accession Number ID |
Funding Information: This work was supported by a postdoctoral fellowship provided by Yale University Department of Geology and Geophysics, with funding provided by the NSF under awards OCE-0902882, OCE-0902993, EAR-0628358, ATM-0513402, ATM-0927946, and ANT-034248. This is PCCRC publication number 1115. Natural Environment Research Council grant NE/G003270/1 provided funds for the stable isotope analysis of carbonates. J.H. was funded by the Royal Swedish Academy of Sciences (KAW 2009.0287). | ||||||||||
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Pagani, M | en_US |
dc.contributor.author | Huber, M | en_US |
dc.contributor.author | Liu, Z | en_US |
dc.contributor.author | Bohaty, SM | en_US |
dc.contributor.author | Henderiks, J | en_US |
dc.contributor.author | Sijp, W | en_US |
dc.contributor.author | Krishnan, S | en_US |
dc.contributor.author | DeConto, RM | en_US |
dc.date.accessioned | 2012-06-26T06:20:55Z | - |
dc.date.available | 2012-06-26T06:20:55Z | - |
dc.date.issued | 2011 | en_US |
dc.identifier.citation | Science, 2011, v. 334 n. 6060, p. 1261-1264 | en_US |
dc.identifier.issn | 0036-8075 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/151348 | - |
dc.description.abstract | Earth's modern climate, characterized by polar ice sheets and large equator-to-pole temperature gradients, is rooted in environmental changes that promoted Antarctic glaciation 33.7 million years ago. Onset of Antarctic glaciation reflects a critical tipping point for Earth's climate and provides a framework for investigating the role of atmospheric carbon dioxide (CO(2)) during major climatic change. Previously published records of alkenone-based CO(2) from high- and low-latitude ocean localities suggested that CO(2) increased during glaciation, in contradiction to theory. Here, we further investigate alkenone records and demonstrate that Antarctic and subantarctic data overestimate atmospheric CO(2) levels, biasing long-term trends. Our results show that CO(2) declined before and during Antarctic glaciation and support a substantial CO(2) decrease as the primary agent forcing Antarctic glaciation, consistent with model-derived CO(2) thresholds. | en_US |
dc.language | eng | en_US |
dc.publisher | American Association for the Advancement of Science. The Journal's web site is located at http://sciencemag.org | en_US |
dc.relation.ispartof | Science | en_US |
dc.rights | Science. Copyright © American Association for the Advancement of Science. | - |
dc.subject | Carbon dioxide | - |
dc.subject | Phosphate | - |
dc.subject | Alkenone | - |
dc.subject | Climate forcing | - |
dc.subject | Glaciation | - |
dc.title | The role of carbon dioxide during the onset of Antarctic glaciation | en_US |
dc.type | Article | en_US |
dc.identifier.email | Pagani, M: mark.pagani@yale.edu | en_US |
dc.identifier.email | Liu, Z: zhliu@hku.hk | - |
dc.identifier.authority | Liu, Z=rp00750 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1126/science.1203909 | en_US |
dc.identifier.pmid | 22144622 | - |
dc.identifier.scopus | eid_2-s2.0-82755192511 | en_US |
dc.identifier.hkuros | 206855 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-82755192511&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 334 | en_US |
dc.identifier.issue | 6060 | en_US |
dc.identifier.spage | 1261 | en_US |
dc.identifier.epage | 1264 | en_US |
dc.identifier.eissn | 1095-9203 | - |
dc.identifier.isi | WOS:000297553600046 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | DeConto, RM=6602434284 | en_US |
dc.identifier.scopusauthorid | Krishnan, S=35339313700 | en_US |
dc.identifier.scopusauthorid | Sijp, W=6506233769 | en_US |
dc.identifier.scopusauthorid | Henderiks, J=6506826355 | en_US |
dc.identifier.scopusauthorid | Bohaty, SM=6603068604 | en_US |
dc.identifier.scopusauthorid | Liu, Z=16177844800 | en_US |
dc.identifier.scopusauthorid | Huber, M=7202671706 | en_US |
dc.identifier.scopusauthorid | Pagani, M=7101857920 | en_US |
dc.identifier.citeulike | 10444287 | - |
dc.identifier.issnl | 0036-8075 | - |