GSA's Geobiology & Geomicrobiology Division (est. 2001) promotes interdisciplinary research focusing on the interplay between the biosphere, lithosphere, hydrosphere, and atmosphere. More specifically, geobiologists and geomicrobiologists examine the effects of biological activities on geological processes and the influences of geological settings on biological processes – both at the macro- and micro-biological scales and in the past through the present. Members are invited to the yearly lunch banquet where winners of the annual Outstanding Contributions to Geobiology & Geomicrobiology Awards are celebrated.