Millennial variations in atmospheric CO2 during the early Holocene (11.7–7.4 ka)

• Published in: Climate of the Past
• Main Authors: J. Shin, J. Ahn, J. Chowdhry Beeman, H.-G. Lee, J. M. Seo, E. J. Brook
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2022
• Subjects: geo; envir; Pacific; Siple; Siple Dome; Antarc*; Antarctica; ice core; North Atlantic
• Online Access: https://doi.org/10.5194/cp-18-2063-2022; https://cp.copernicus.org/articles/18/2063/2022/cp-18-2063-2022.pdf; https://doaj.org/article/033e89919070428da3887f4286f127f3

We present a new high-resolution record of atmospheric CO2 from the Siple Dome ice core, Antarctica, over the early Holocene (11.7–7.4 ka) that quantifies natural CO2 variability on millennial timescales under interglacial climate conditions. Atmospheric CO2 decreased by ∼10 ppm between 11.3 and 7.3...