Articles | Volume 11, issue 3
Research article
27 Mar 2015
Research article |  | 27 Mar 2015

Diminished greenhouse warming from Archean methane due to solar absorption lines

B. Byrne and C. Goldblatt


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Svenja Lange on behalf of the Authors (19 Feb 2015)  Author's response
ED: Publish as is (03 Mar 2015) by Yves Godderis
Short summary
High methane concentrations are thought to have helped sustain warm surface temperatures on the early Earth (~3 billion years ago) when the sun was only 80% as luminous as today. However, radiative transfer calculations with updated spectral data show that methane is a stronger absorber of solar radiation than previously thought. In this paper we show that the increased solar absorption causes a redcution in the warming ability of methane in the Archaean atmosphere.