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Cool La Nina during the warmth of the Pliocene?

Abstract:

The role of El Niño-Southern Oscillation (ENSO) in greenhouse warming and climate change remains controversial. During the warmth of the early-mid Pliocene, we find evidence for enhanced thermocline tilt and cold upwelling in the equatorial Pacific, consistent with the prevalence of a La Niña-like state, rather than the proposed persistent warm El Niño-like conditions. Our Pliocene paleothermometer supports the idea of a dynamic "ocean thermostat" in which heating of the tropical Pacific lead...

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Publication status:
Published

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Publisher copy:
10.1126/science.1104666

Authors


Rickaby, RE More by this author
Halloran, P More by this author
Journal:
Science (New York, N.Y.)
Volume:
307
Issue:
5717
Pages:
1948-1952
Publication date:
2005-03-05
DOI:
EISSN:
1095-9203
ISSN:
0036-8075
URN:
uuid:ebc771c0-29eb-4de2-a3ac-ee409618b108
Source identifiers:
82527
Local pid:
pubs:82527
Language:
English

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