A global environmental crisis 42,000 years ago

Cooper, Alan; Turney, Chris S. M.; Palmer, Jonathan; Hogg, Alan; McGlone, Matt; Wilmshurst, Janet; Lorrey, Andrew M.; Heaton, Timothy J.; Russell, James M.; McCracken, Ken; Anet, Julien; Rozanov, Eugene; Friedel, Marina; Suter, Ivo; Peter, Thomas; Muscheler, Raimund; Adolphi, Florian; Dosseto, Anthony; Faith, Tyler J.; Fenwick, Pavla; Fogwill, Christopher J.; Hughen, Konrad; Lipson, Mathew; Liu, Jiabo; Nowaczyk, Norbert; Rainsley, Eleanor; Ramsey, Christopher Bronk; Sebastianelli, Paolo; Souilmi, Yassine; Stevenson, Janelle; Thomas, Zoë; Tobler, Raymond; Zech, Roland

doi:10.1126/science.abb8677

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	A global environmental crisis 42,000 years ago
Authors:	Cooper, Alan Turney, Chris S. M. Palmer, Jonathan Hogg, Alan McGlone, Matt Wilmshurst, Janet Lorrey, Andrew M. Heaton, Timothy J. Russell, James M. McCracken, Ken Anet, Julien Rozanov, Eugene Friedel, Marina Suter, Ivo Peter, Thomas Muscheler, Raimund Adolphi, Florian Dosseto, Anthony Faith, Tyler J. Fenwick, Pavla Fogwill, Christopher J. Hughen, Konrad Lipson, Mathew Liu, Jiabo Nowaczyk, Norbert Rainsley, Eleanor Ramsey, Christopher Bronk Sebastianelli, Paolo Souilmi, Yassine Stevenson, Janelle Thomas, Zoë Tobler, Raymond Zech, Roland
et. al:	No
DOI:	10.1126/science.abb8677
Published in:	Science
Volume(Issue):	371
Issue:	6531
Page(s):	811
Pages to:	818
Issue Date:	Feb-2021
Publisher / Ed. Institution:	American Association for the Advancement of Science
ISSN:	0036-8075 1095-9203
Language:	English
Subject (DDC):	530: Physics 551: Geology and hydrology
Abstract:	Geological archives record multiple reversals of Earth’s magnetic poles, but the global impacts of these events, if any, remain unclear. Uncertain radiocarbon calibration has limited investigation of the potential effects of the last major magnetic inversion, known as the Laschamps Excursion [41 to 42 thousand years ago (ka)]. We use ancient New Zealand kauri trees (Agathis australis) to develop a detailed record of atmospheric radiocarbon levels across the Laschamps Excursion. We precisely characterize the geomagnetic reversal and perform global chemistry-climate modeling and detailed radiocarbon dating of paleoenvironmental records to investigate impacts. We find that geomagnetic field minima ~42 ka, in combination with Grand Solar Minima, caused substantial changes in atmospheric ozone concentration and circulation, driving synchronous global climate shifts that caused major environmental changes, extinction events, and transformations in the archaeological record.
URI:	https://ora.ox.ac.uk/objects/uuid:4df59a07-09d9-4573-a310-97f20e83490d https://digitalcollection.zhaw.ch/handle/11475/21874
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Centre for Aviation (ZAV)
Appears in collections:	Publikationen School of Engineering

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Cooper, A., Turney, C. S. M., Palmer, J., Hogg, A., McGlone, M., Wilmshurst, J., Lorrey, A. M., Heaton, T. J., Russell, J. M., McCracken, K., Anet, J., Rozanov, E., Friedel, M., Suter, I., Peter, T., Muscheler, R., Adolphi, F., Dosseto, A., Faith, T. J., et al. (2021). A global environmental crisis 42,000 years ago. Science, 371(6531), 811–818. https://doi.org/10.1126/science.abb8677

Cooper, A. et al. (2021) ‘A global environmental crisis 42,000 years ago’, Science, 371(6531), pp. 811–818. Available at: https://doi.org/10.1126/science.abb8677.

A. Cooper et al., “A global environmental crisis 42,000 years ago,” Science, vol. 371, no. 6531, pp. 811–818, Feb. 2021, doi: 10.1126/science.abb8677.

COOPER, Alan, Chris S. M. TURNEY, Jonathan PALMER, Alan HOGG, Matt MCGLONE, Janet WILMSHURST, Andrew M. LORREY, Timothy J. HEATON, James M. RUSSELL, Ken MCCRACKEN, Julien ANET, Eugene ROZANOV, Marina FRIEDEL, Ivo SUTER, Thomas PETER, Raimund MUSCHELER, Florian ADOLPHI, Anthony DOSSETO, Tyler J. FAITH, Pavla FENWICK, Christopher J. FOGWILL, Konrad HUGHEN, Mathew LIPSON, Jiabo LIU, Norbert NOWACZYK, Eleanor RAINSLEY, Christopher Bronk RAMSEY, Paolo SEBASTIANELLI, Yassine SOUILMI, Janelle STEVENSON, Zoë THOMAS, Raymond TOBLER und Roland ZECH, 2021. A global environmental crisis 42,000 years ago. Science [online]. Februar 2021. Bd. 371, Nr. 6531, S. 811–818. DOI 10.1126/science.abb8677. Verfügbar unter: https://ora.ox.ac.uk/objects/uuid:4df59a07-09d9-4573-a310-97f20e83490d

Cooper, Alan, Chris S. M. Turney, Jonathan Palmer, Alan Hogg, Matt McGlone, Janet Wilmshurst, Andrew M. Lorrey, et al. 2021. “A Global Environmental Crisis 42,000 Years Ago.” Science 371 (6531): 811–18. https://doi.org/10.1126/science.abb8677.

Cooper, Alan, et al. “A Global Environmental Crisis 42,000 Years Ago.” Science, vol. 371, no. 6531, Feb. 2021, pp. 811–18, https://doi.org/10.1126/science.abb8677.