README -- describes 1-year benchmark simulation 12.4.0 GEOS-Chem Support Team geos-chem-support@as.harvard.edu 10 Jul 2019 We ran this GEOS-Chem 1-year benchmark simulation (denoted 12.4.0) in order to validate modifications since 12.0.0. For more information see the GEOS-Chem wiki: http://wiki.seas.harvard.edu/geos-chem/index.php/GEOS-Chem_12#12.4.0