In:
Science, American Association for the Advancement of Science (AAAS), Vol. 330, No. 6005 ( 2010-11-05), p. 819-821
Abstract:
The long-term warmth of the Eocene (~56 to 34 million years ago) is commonly associated with elevated partial pressure of atmospheric carbon dioxide ( p CO 2 ). However, a direct relationship between the two has not been established for short-term climate perturbations. We reconstructed changes in both p CO 2 and temperature over an episode of transient global warming called the Middle Eocene Climatic Optimum (MECO; ~40 million years ago). Organic molecular paleothermometry indicates a warming of southwest Pacific sea surface temperatures (SSTs) by 3° to 6°C. Reconstructions of p CO 2 indicate a concomitant increase by a factor of 2 to 3. The marked consistency between SST and p CO 2 trends during the MECO suggests that elevated p CO 2 played a major role in global warming during the MECO.
Type of Medium:
Online Resource
ISSN:
0036-8075
,
1095-9203
DOI:
10.1126/science.1193654
Language:
English
Publisher:
American Association for the Advancement of Science (AAAS)
Publication Date:
2010
detail.hit.zdb_id:
128410-1
detail.hit.zdb_id:
2066996-3
detail.hit.zdb_id:
2060783-0
SSG:
11
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