AUTHOR=Edwards Arwyn TITLE=Coming in from the cold: potential microbial threats from the terrestrial cryosphere JOURNAL=Frontiers in Earth Science VOLUME=3 YEAR=2015 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2015.00012 DOI=10.3389/feart.2015.00012 ISSN=2296-6463