TY - RPRT TI - Ancient low–molecular-weight organic acids in permafrost fuel rapid carbon dioxide production upon thaw AU - Travis W. Drake AU - Kimberly P. Wickland AU - Robert G. M. Spencer AU - Diane M. McKnight AU - Robert G. Striegl PY - 2015 DO - 10.1073/pnas.1511705112 UR - https://pubs.usgs.gov/publication/70182173 ID - 70182173 ER -