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Freshwater Methane Emissions Offset the Continental Carbon Sink
Linköping University, The Tema Institute, Department of Water and Environmental Studies. Linköping University, Faculty of Arts and Sciences.
Uppsala universitet.
Iowa State University.
Stockholms universitet.
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2011 (English)In: Science, ISSN 0036-8075, Vol. 331, no 6013, 50-50 p.Article in journal (Refereed) Published
Abstract [en]

Inland waters (lakes, reservoirs, streams, and rivers) are often substantial methane (CH4) sources in the terrestrial landscape. They are, however, not yet well integrated in global greenhouse gas (GHG) budgets. Data from 474 freshwater ecosystems and the most recent global water area estimates indicate that freshwaters emit at least 103 teragrams of CH4 year−1, corresponding to 0.65 petagrams of C as carbon dioxide (CO2) equivalents year−1, offsetting 25% of the estimated land carbon sink. Thus, the continental GHG sink may be considerably overestimated, and freshwaters need to be recognized as important in the global carbon cycle.

Place, publisher, year, edition, pages
2011. Vol. 331, no 6013, 50-50 p.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-64364DOI: 10.1126/science.1196808ISI: 000285974000030OAI: diva2:389758
Original Publication: David Bastviken, Lars J. Tranvik, John A. Downing, Patrick M. Crill and Alex Enrich-Prast, Freshwater Methane Emissions Offset the Continental Carbon Sink, 2011, Science, (331), 6013, 50-50. Copyright: American Association for the Advancement of Science Available from: 2011-01-20 Created: 2011-01-20 Last updated: 2011-02-07

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