North Siberian Lakes: A Methane Source Fueled by Pleistocene Carbon
Open Access
- 8 August 1997
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 277 (5327) , 800-802
- https://doi.org/10.1126/science.277.5327.800
Abstract
The sizes of major sources and sinks of atmospheric methane (CH 4 ), an important greenhouse gas, are poorly known. CH 4 from north Siberian lakes contributes ∼1.5 teragrams CH 4 year −1 to observed winter increases in atmospheric CH 4 concentration at high northern latitudes. CH 4 emitted from these lakes in winter had a radiocarbon age of 27,200 years and was derived largely from Pleistocene-aged carbon.Keywords
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