Atmospheric CO 2 over the last 1000 years: A high-resolution record from the West Antarctic Ice Sheet (WAIS) Divide ice core

• Published in: Global Biogeochemical Cycles
• Main Authors: Ahn J., Brook E. J., Mitchell L., Rosen J., McConnell J. R., Taylor K., Etheridge D., Rubino M.
• Other Authors: Ahn, J., Brook, E. J., Mitchell, L., Rosen, J., Mcconnell, J. R., Taylor, K., Etheridge, D., Rubino, M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2012
• Subjects: Antarctic; Dronning Maud Land; West Antarctic Ice Sheet; Pacific; Law Dome; Antarc*; EPICA; ice core; Ice Sheet
• Online Access: http://hdl.handle.net/11591/410570; https://doi.org/10.1029/2011GB004247

We report a decadally resolved record of atmospheric CO 2 concentration for the last 1000 years, obtained from the West Antarctic Ice Sheet (WAIS) Divide shallow ice core. The most prominent feature of the pre-industrial period is a rapid ∼7 ppm decrease of CO 2 in a span of ∼20-50 years at ∼1600 A....