Sinks for atmospheric methane

O. Badr, S.D. Probert and P.W. O'Callaghan

Applied Energy, 1992, vol. 41, issue 2, 137-147

Abstract: Methane (CH4), an important trace gas in the atmosphere, controls numerous chemical processes and species in the troposphere and stratosphere. It is a strong greenhouse gas with a significant adverse impact upon the environment. The concentration of CH4 in the Earth's atmosphere has been increasing at a global rate of about 1% annually during this century, and reached 1·72 ppmv (by volume) in 1990. This increase is due to increasing sources, decreasing sinks or a combination of both. In this study, the individual sinks for atmospheric CH4 are identified and characterised. Available estimates for the strengths of these sinks are presented. The role of CH4 in the chemistry of the atmosphere is also discussed.

Date: 1992
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