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Rapid Variations in Atmospheric Methane Concentration During the Past 110,000 Years
Abstract
A methane record from the GISP2 ice core reveals that millennial-scale variations in atmospheric methane concentration characterized much of the past 110,000 years. As previously observed in a shorter record from central Greenland, abrupt concentration shifts of about 50 to 300 parts per billion by volume were coeval with most of the interstadial warming events (better known as Dansgaard-Oeschger events) recorded in the GISP2 ice core throughout the last glacial period. The magnitude of the rapid concentration shifts varied on a longer time scale in a manner consistent with variations in Northern Hemisphere summer insolation, which suggests that insolation may have modulated the effects of interstadial climate change on the terrestrial biosphere.
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Citations
Cited by
A Pervasive Millennial-Scale Cycle in North Atlantic Holocene and Glacial Climates
Bond, G., Showers, W., Cheseby, M., Lotti, R., Almasi, P., deMenocal, P., Priore, P., Cullen, H., Hajdas, I., & Bonani, G. (1997) · Science · doi:10.1126/science.278.5341.1257 · Cited by 2,720
The Anthropogenic Greenhouse Era Began Thousands of Years Ago
Ruddiman, W. F. (2003) · Climatic Change · doi:10.1023/b:clim.0000004577.17928.fa · Cited by 1,658
The 8k event: cause and consequences of a major Holocene abrupt climate change
ALLEY, R., & AGUSTSDOTTIR, A. (2005) · Quaternary Science Reviews · doi:10.1016/j.quascirev.2004.12.004 · Cited by 916
Power, M. J., Marlon, J., Ortiz, N., Bartlein, P. J., Harrison, S. P., Mayle, F. E., Ballouche, A., Bradshaw, R. H. W., Carcaillet, C., Cordova, C., et al. (2008) · Climate Dynamics · doi:10.1007/s00382-007-0334-x · Cited by 717
Millennial-scale variability during the last glacial: The ice core record
Wolff, E. W., Chappellaz, J., Blunier, T., Rasmussen, S. O., & Svensson, A. (2010) · Quaternary Science Reviews · doi:10.1016/j.quascirev.2009.10.013 · Cited by 580
Metadata
- Authors
- Brook, E. J., Sowers, T., & Orchardo, J.
- Venue
- Science
- Published
- 1996-08-23
- Volume
- 273
- Issue
- 5278
- Pages
- 1087-1091
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2091991077
- Cited by
- 340
- References
- 0
- FWCI
- 9.44
- Type
- journal article
- Language
- en
- Open access
- closed
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- Brook, E. J., Sowers, T., & Orchardo, J. (1996). Rapid Variations in Atmospheric Methane Concentration During the Past 110,000 Years. Science. https://doi.org/10.1126/science.273.5278.1087
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