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dc.contributor.authorRosentreter, Judith A.
dc.contributor.authorBorges, Alberto V.
dc.contributor.authorDeemer, Bridget R.
dc.contributor.authorHolgerson, Meredith A.
dc.contributor.authorLiu, Shaoda
dc.contributor.authorSong, Chunlin
dc.contributor.authorMelack, John
dc.contributor.authorRaymond, Peter A.
dc.contributor.authorDuarte, Carlos M.
dc.contributor.authorAllen, George H.
dc.contributor.authorOlefeldt, David
dc.contributor.authorPoulter, Benjamin
dc.contributor.authorBattin, Tom I.
dc.contributor.authorEyre, Bradley D
dc.date.accessioned2021-04-13T06:59:21Z
dc.date.available2021-04-13T06:59:21Z
dc.date.issued2021-04-05
dc.date.submitted2020-04-14
dc.identifier.citationRosentreter, J. A., Borges, A. V., Deemer, B. R., Holgerson, M. A., Liu, S., Song, C., … Eyre, B. D. (2021). Half of global methane emissions come from highly variable aquatic ecosystem sources. Nature Geoscience, 14(4), 225–230. doi:10.1038/s41561-021-00715-2
dc.identifier.issn1752-0908
dc.identifier.issn1752-0894
dc.identifier.doi10.1038/s41561-021-00715-2
dc.identifier.urihttp://hdl.handle.net/10754/668712
dc.description.abstractAtmospheric methane is a potent greenhouse gas that plays a major role in controlling the Earth’s climate. The causes of the renewed increase of methane concentration since 2007 are uncertain given the multiple sources and complex biogeochemistry. Here, we present a metadata analysis of methane fluxes from all major natural, impacted and human-made aquatic ecosystems. Our revised bottom-up global aquatic methane emissions combine diffusive, ebullitive and/or plant-mediated fluxes from 15 aquatic ecosystems. We emphasize the high variability of methane fluxes within and between aquatic ecosystems and a positively skewed distribution of empirical data, making global estimates sensitive to statistical assumptions and sampling design. We find aquatic ecosystems contribute (median) 41% or (mean) 53% of total global methane emissions from anthropogenic and natural sources. We show that methane emissions increase from natural to impacted aquatic ecosystems and from coastal to freshwater ecosystems. We argue that aquatic emissions will probably increase due to urbanization, eutrophication and positive climate feedbacks and suggest changes in land-use management as potential mitigation strategies to reduce aquatic methane emissions.
dc.description.sponsorshipJ.A.R. and B.D.E. were supported by ARC Grants DP160100248 and LP150100519. A.V.B. is a research director at the Fonds National de la Recherche Scientifique (FNRS). C.S. was supported by The Second Tibetan Plateau Scientific Expedition and Research programme grant 2019QZKK0304. J.M. received funding from NASA grant NNX17AK49G. B.P. acknowledges support from the NASA Terrestrial Ecology Program and the Gordon and Betty Moore Foundation (GBMF5439). D.O. was supported by funding from the Campus Alberta Innovates Program (CAIP). Thanks to M. F. Billett, K. McKenzie and M. Wallin for providing additional information for the streams and rivers dataset. Thanks to A. Grinham, L. Gómez-Gener, T. DelSontro, K. Kuhn and K. Delwich for providing ancillary data to the lake and reservoir dataset. We thank P. del Giorgio and Y. Prairie for providing feedback on earlier versions of this work. We thank J.-J. Chen for translating several Chinese papers. Any use of trade, firm or product names is for descriptive purposes only and does not imply endorsement by the US Government.
dc.publisherSpringer Nature
dc.relation.urlhttp://www.nature.com/articles/s41561-021-00715-2
dc.rightsArchived with thanks to Nature Geoscience
dc.titleHalf of global methane emissions come from highly variable aquatic ecosystem sources
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentMarine Science Program
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.identifier.journalNature Geoscience
dc.rights.embargodate2021-10-05
dc.eprint.versionPost-print
dc.contributor.institutionCentre for Coastal Biogeochemistry, Faculty of Science and Engineering, Southern Cross University, Lismore, New South Wales, Australia
dc.contributor.institutionYale School of the Environment, Yale University, New Haven, CT, USA
dc.contributor.institutionUniversity of Liège, Chemical Oceanography Unit, Liège, Belgium
dc.contributor.institutionUS Geological Survey, Southwest Biological Science Center, Flagstaff, AZ, USA
dc.contributor.institutionDepartment of Biology, St. Olaf College, Northfield, MN, USA
dc.contributor.institutionDepartment of Environmental Studies, St. Olaf College, Northfield, MN, USA
dc.contributor.institutionDepartment of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA
dc.contributor.institutionSchool of Environment, Beijing Normal University, Haidian, Beijing, China
dc.contributor.institutionInstitute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
dc.contributor.institutionState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, China
dc.contributor.institutionBren School of Environmental Science and Management, University of California, Santa Barbara, CA, USA
dc.contributor.institutionResearch Centre, Biology Department, Aarhus University, Århus, Denmark
dc.contributor.institutionDepartment of Geography, Texas A&M University, College Station, TX, USA
dc.contributor.institutionDepartment of Renewable Resources, University of Alberta, Edmonton, Alberta, Canada
dc.contributor.institutionNASA Goddard Space Flight Center, Biospheric Sciences Laboratory, Greenbelt, MD, USA
dc.contributor.institutionÉcole Polytechnique Fédérale de Lausanne, Alpine and Polar Environment Research Center, Lausanne, Switzerland
dc.identifier.volume14
dc.identifier.issue4
dc.identifier.pages225-230
kaust.personDuarte, Carlos M.
dc.date.accepted2021-02-18
dc.identifier.eid2-s2.0-85103672100
refterms.dateFOA2021-04-13T07:18:07Z


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