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Title: An active atmospheric methane sink in high Arctic mineral cryosols

Abstract

The transition of Arctic carbon-rich cryosols into methane (CH₄)-emitting wetlands due to global warming is a rising concern. However, the spatially predominant mineral cryosols and their CH₄ emission potential are poorly understood. Fluxes measured in situ and estimated under laboratory conditions coupled with -omics analysis indicate (1) mineral cryosols in the Canadian high Arctic contain atmospheric CH₄-oxidizing bacteria; (2) the atmospheric CH⁺ uptake flux increases with ground temperature; and, as a result, (3) the atmospheric CH₄ sink strength will increase by a factor of 5-30 as the Arctic warms by 5-15 °C over a century. We demonstrated that acidic mineral cryosols have previously unrecognized potential of negative CH₄ feedback.

Authors:
 [1];  [1];  [2];  [2];  [2];  [3];  [4];  [5];  [6];  [1];  [6];  [3];  [6];  [5];  [1];  [2];  [6];  [1]
  1. Princeton Univ., Princeton, NJ (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. McGill Univ., Montreal, QC (Canada); Laurentian Univ., Ontario (Canada)
  5. Univ. of Texas at Austin, Austin, TX (United States)
  6. McGill Univ., Montreal, QC (Canada)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1213309
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
The ISME Journal
Additional Journal Information:
Journal Volume: 9; Journal Issue: 8; Journal ID: ISSN 1751-7362
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Lau, Maggie C.Y., Stackhouse, B., Layton, Alice C., Chauhan, Archana, Vishnivetskaya, T. A., Chourey, Karuna, Mykytczuk, N. C.S., Bennett, Phil C., Lamarche-Gagnon, G., Burton, N., Renholm, J., Hettich, R. L., Pollard, W. H., Omelon, C. R., Medvigy, David M., Pffifner, Susan M., Whyte, L. G., and Onstott, T. C.. An active atmospheric methane sink in high Arctic mineral cryosols. United States: N. p., 2015. Web. doi:10.1038/ismej.2015.13.
Lau, Maggie C.Y., Stackhouse, B., Layton, Alice C., Chauhan, Archana, Vishnivetskaya, T. A., Chourey, Karuna, Mykytczuk, N. C.S., Bennett, Phil C., Lamarche-Gagnon, G., Burton, N., Renholm, J., Hettich, R. L., Pollard, W. H., Omelon, C. R., Medvigy, David M., Pffifner, Susan M., Whyte, L. G., & Onstott, T. C.. An active atmospheric methane sink in high Arctic mineral cryosols. United States. doi:10.1038/ismej.2015.13.
Lau, Maggie C.Y., Stackhouse, B., Layton, Alice C., Chauhan, Archana, Vishnivetskaya, T. A., Chourey, Karuna, Mykytczuk, N. C.S., Bennett, Phil C., Lamarche-Gagnon, G., Burton, N., Renholm, J., Hettich, R. L., Pollard, W. H., Omelon, C. R., Medvigy, David M., Pffifner, Susan M., Whyte, L. G., and Onstott, T. C.. Thu . "An active atmospheric methane sink in high Arctic mineral cryosols". United States. doi:10.1038/ismej.2015.13. https://www.osti.gov/servlets/purl/1213309.
@article{osti_1213309,
title = {An active atmospheric methane sink in high Arctic mineral cryosols},
author = {Lau, Maggie C.Y. and Stackhouse, B. and Layton, Alice C. and Chauhan, Archana and Vishnivetskaya, T. A. and Chourey, Karuna and Mykytczuk, N. C.S. and Bennett, Phil C. and Lamarche-Gagnon, G. and Burton, N. and Renholm, J. and Hettich, R. L. and Pollard, W. H. and Omelon, C. R. and Medvigy, David M. and Pffifner, Susan M. and Whyte, L. G. and Onstott, T. C.},
abstractNote = {The transition of Arctic carbon-rich cryosols into methane (CH₄)-emitting wetlands due to global warming is a rising concern. However, the spatially predominant mineral cryosols and their CH₄ emission potential are poorly understood. Fluxes measured in situ and estimated under laboratory conditions coupled with -omics analysis indicate (1) mineral cryosols in the Canadian high Arctic contain atmospheric CH₄-oxidizing bacteria; (2) the atmospheric CH⁺ uptake flux increases with ground temperature; and, as a result, (3) the atmospheric CH₄ sink strength will increase by a factor of 5-30 as the Arctic warms by 5-15 °C over a century. We demonstrated that acidic mineral cryosols have previously unrecognized potential of negative CH₄ feedback.},
doi = {10.1038/ismej.2015.13},
journal = {The ISME Journal},
number = 8,
volume = 9,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}

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Cited by: 13 works
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