The Holocene temperature conundrum

Zhengyu Liu; Jiang Zhu; Yair Rosenthal; Xu Zhang; Bette L. Otto-Bliesner; Axel Timmermann; Robin S. Smith; Gerrit Lohmann; Weipeng Zheng; Oliver Elison Timm

doi:10.1073/pnas.1407229111

The Holocene temperature conundrum

Zhengyu Liu, Jiang Zhu, Yair Rosenthal, Xu Zhang, Bette L. Otto-Bliesner, Axel Timmermann, Robin S. Smith, Gerrit Lohmann, Weipeng Zheng, Oliver Elison Timm

Paleo and Polar Climate

Research output: Contribution to journal › Article › peer-review

420 Scopus citations

Abstract

A recent temperature reconstruction of global annual temperature shows Early Holocene warmth followed by a cooling trend through the Middle to Late Holocene [Marcott SA, et al., 2013, Science 339(6124):1198-1201]. This global cooling is puzzling because it is opposite from the expected and simulated global warming trend due to the retreating ice sheets and rising atmospheric greenhouse gases. Our critical reexamination of this contradiction between the reconstructed cooling and the simulated warming points to potentially significant biases in both the seasonality of the proxy reconstruction and the climate sensitivity of current climate models.

Original language	English
Pages (from-to)	E3501-E3505
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	111
Issue number	34
DOIs	https://doi.org/10.1073/pnas.1407229111
State	Published - Aug 26 2014

Keywords

Global temperature
Holocene temperature
Model-data inconsistency

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10.1073/pnas.1407229111

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title = "The Holocene temperature conundrum",

abstract = "A recent temperature reconstruction of global annual temperature shows Early Holocene warmth followed by a cooling trend through the Middle to Late Holocene [Marcott SA, et al., 2013, Science 339(6124):1198-1201]. This global cooling is puzzling because it is opposite from the expected and simulated global warming trend due to the retreating ice sheets and rising atmospheric greenhouse gases. Our critical reexamination of this contradiction between the reconstructed cooling and the simulated warming points to potentially significant biases in both the seasonality of the proxy reconstruction and the climate sensitivity of current climate models.",

keywords = "Global temperature, Holocene temperature, Model-data inconsistency",

author = "Zhengyu Liu and Jiang Zhu and Yair Rosenthal and Xu Zhang and Otto-Bliesner, \{Bette L.\} and Axel Timmermann and Smith, \{Robin S.\} and Gerrit Lohmann and Weipeng Zheng and Timm, \{Oliver Elison\}",

year = "2014",

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doi = "10.1073/pnas.1407229111",

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AU - Liu, Zhengyu

AU - Zhu, Jiang

AU - Rosenthal, Yair

AU - Zhang, Xu

AU - Otto-Bliesner, Bette L.

AU - Timmermann, Axel

AU - Smith, Robin S.

AU - Lohmann, Gerrit

AU - Zheng, Weipeng

AU - Timm, Oliver Elison

PY - 2014/8/26

Y1 - 2014/8/26

N2 - A recent temperature reconstruction of global annual temperature shows Early Holocene warmth followed by a cooling trend through the Middle to Late Holocene [Marcott SA, et al., 2013, Science 339(6124):1198-1201]. This global cooling is puzzling because it is opposite from the expected and simulated global warming trend due to the retreating ice sheets and rising atmospheric greenhouse gases. Our critical reexamination of this contradiction between the reconstructed cooling and the simulated warming points to potentially significant biases in both the seasonality of the proxy reconstruction and the climate sensitivity of current climate models.

AB - A recent temperature reconstruction of global annual temperature shows Early Holocene warmth followed by a cooling trend through the Middle to Late Holocene [Marcott SA, et al., 2013, Science 339(6124):1198-1201]. This global cooling is puzzling because it is opposite from the expected and simulated global warming trend due to the retreating ice sheets and rising atmospheric greenhouse gases. Our critical reexamination of this contradiction between the reconstructed cooling and the simulated warming points to potentially significant biases in both the seasonality of the proxy reconstruction and the climate sensitivity of current climate models.

KW - Global temperature

KW - Holocene temperature

KW - Model-data inconsistency

UR - https://www.scopus.com/pages/publications/84906668278

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DO - 10.1073/pnas.1407229111

M3 - Article

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SN - 0027-8424

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SP - E3501-E3505

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

IS - 34

ER -

The Holocene temperature conundrum

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Keywords

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