No apparent state-dependency of equilibrium climate sensitivity between the Pleistocene glacial and interglacial climate states

Jiawei Da, Yi Ge Zhang (), Xiaoqing Liu, Daniel O. Breecker, Gen K. Li, Tianyu Chen and Junfeng Ji ()
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Jiawei Da: Nanjing University
Yi Ge Zhang: Chinese Academy of Sciences
Xiaoqing Liu: Purdue University
Daniel O. Breecker: The University of Texas at Austin
Gen K. Li: University of California
Tianyu Chen: Nanjing University
Junfeng Ji: Nanjing University

Nature Communications, 2025, vol. 16, issue 1, 1-11

Abstract: Abstract Quantifying climate sensitivity is essential for future climate projections, yet it varies with major Earth system changes. We present a glacial CO₂ reconstruction using paleosols from the Chinese Loess Plateau, covering 2580 to 800 thousand years ago. A stepwise decline in glacial CO₂ levels from ~300 ppm to

Date: 2025
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DOI: 10.1038/s41467-025-61941-5

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