Synchronous volcanic eruptions and abrupt climate change ~17.7k years ago plausibly linked by stratospheric ozone depletion

• Published in: Proceedings of the National Academy of Sciences
• Main Authors: McConnell, Joseph R., Burke, Andrea, Dunbar, Nelia W., Köhler, Peter, Thomas, Jennie L., Arienzo, Monica M., Chellman, Nathan J., Maselli, Olivia J., Sigl, Michael, Adkins, Jess F., Baggenstos, Daniel, Burkhart, John F., Brook, Edward J., Buizert, Christo, Cole-Dai, Jihong, Fudge, T. J., Knorr, Gregor, Graf, Hans-F., Grieman, Mackenzie M., Iverson, Nels, McGwire, Kenneth C., Mulvaney, Robert, Paris, Guillaume, Rhodes, Rachael H., Saltzman, Eric S., Severinghaus, Jeffrey P., Steffensen, Jørgen Peder, Taylor, Kendrick C., Winckler, Gisela
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2017
• Subjects: Climate; Deglaciation; Volcanism; Ozone; Aerosol; Antarctic; Antarctic Peninsula; Byrd; Mount Takahe; Takahe; The Antarctic; West Antarctic Ice Sheet; Antarc*; Antarctica; ice core; Ice Sheet
• Online Access: https://research-portal.st-andrews.ac.uk/en/researchoutput/synchronous-volcanic-eruptions-and-abrupt-climate-change-177k-years-ago-plausibly-linked-by-stratospheric-ozone-depletion(e32947a9-c9ea-4e90-b0e2-4299d97a617d).html; https://doi.org/10.1073/pnas.1705595114; https://research-repository.st-andrews.ac.uk/bitstream/10023/12853/1/Burke_2017_PNAS_SynchronousVolcanic_AAM.pdf; https://research-repository.st-andrews.ac.uk/bitstream/10023/12853/2/18ka_PNAS_080217_SI_Appendix.pdf

Glacial-state greenhouse gas concentrations and Southern Hemisphere climate conditions persisted until ∼17.7 ka, when a nearly synchronous acceleration in deglaciation was recorded in paleoclimate proxies in large parts of the Southern Hemisphere, with many changes ascribed to a sudden poleward shif...