Diminished greenhouse warming from Archean methane due to solar absorption lines

  title={Diminished greenhouse warming from Archean methane due to solar absorption lines},
  author={Barry Byrne and Colin Goldblatt},
Previous research has shown that methane may have been sustained at high concentrations in the Archean atmosphere, helping to offset lower insolation and solve the faint young sun problem. However, recent updates to the HITRAN (High-Resolution Transmission) line database have significantly increased the shortwave absorption by CH4 in comparison to older versions of the database (e.g. HITRAN 2000). Here we investigate the climatological implications of strong shortwave CH4 absorption in an… CONTINUE READING

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