@article{2451,
  keywords = {biogenic emission, methane, microbial activity, Oxidation, Arctic},
  author = {Y. Oh and Q. Zhuang and L. Liu and L.R. Welp and M.C.Y. Lau and T.C. Onstott and D. Medvigy and L. Bruhwiler and E.J. Dlugokencky and G. Hugelius and L. D{\textquoteright}Imperio and B. Elberling},
  title = {Reduced net methane emissions due to microbial methane oxidation in a warmer Arctic},
  abstract = {Methane emissions from organic-rich soils in the Arctic have been extensively studied due to their potential to increase the atmospheric methane burden as permafrost thaws1{\textendash}3. However, this methane source might have been overestimated without considering high-affinity methanotrophs (HAMs; methane-oxidizing bacteria) recently identified in Arctic mineral soils4{\textendash}7. Herein we find that integrating the dynamics of HAMs and methanogens into a biogeochemistry model8{\textendash}10 that includes permafrost soil organic carbon dynamics3 leads to the upland methane sink doubling ( 5.5 Tg CH4 yr-1) north of 50 {\textdegree}N in simulations from 2000{\textendash}2016. The increase is equivalent to at least half of the difference in net methane emissions estimated between process-based models and observation-based inversions11,12, and the revised estimates better match site-level and regional observations5 , 7 , 13{\textendash}15. The new model projects doubled wetland methane emissions between 2017{\textendash}2100 due to more accessible permafrost carbon16{\textendash}18. However, most of the increase in wetland emissions is offset by a concordant increase in the upland sink, leading to only an 18\% increase in net methane emission (from 29 to 35 Tg CH4 yr-1). The projected net methane emissions may decrease further due to different physiological responses between HAMs and methanogens in response to increasing temperature19,20. {\textcopyright} 2020, The Author(s), under exclusive licence to Springer Nature Limited.},
  year = {2020},
  journal = {Nature Climate Change},
  volume = {10},
  number = {4},
  pages = {317-321},
  url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082944696\&doi=10.1038\%2fs41558-020-0734-z\&partnerID=40\&md5=0777bfa3a01e78a33b3e1155b8fd1a68},
  doi = {10.1038/s41558-020-0734-z},
}