Patterns of permafrost microbial functional genes and in situ greenhouse gas concentrations indicate that permafrost is an active microbial ecosystem

Mark P Waldrop1, Jack W Mcfarland1, Kristen Manies1, Stephanie R. James2, Burke J Minsley2, Jenni Hultman3, Igor Pessi3 and Mary-Cathrine Leewis4, (1)USGS, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, United States, (2)USGS, Geology, Geophysics, and Geochemistry Science Center, Denver, United States, (3)University of Helsinki, Helsinki, Finland, (4)Agriculture and Agri-Food Canada, Ottawa, Canada