Journal Article10.1038/NATURE14338
Climate change and the permafrost carbon feedback
Edward A. G. Schuur,A. D. McGuire,Christina Schädel,Christina Schädel,Guido Grosse,Jennifer W. Harden,Daniel J. Hayes,Gustaf Hugelius,Charles D. Koven,Peter Kuhry,David M. Lawrence,Susan M. Natali,David Olefeldt,Vladimir E. Romanovsky,Kevin Schaefer,Merritt R. Turetsky,Claire C. Treat,Jorien E. Vonk +17 more
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TL;DR: In this paper, the authors find that current evidence suggests a gradual and prolonged release of greenhouse gas emissions in a warming climate and present a research strategy with which to target poorly understood aspects of permafrost carbon dynamics.
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Abstract: Large quantities of organic carbon are stored in frozen soils (permafrost) within Arctic and sub-Arctic regions. A warming climate can induce environmental changes that accelerate the microbial breakdown of organic carbon and the release of the greenhouse gases carbon dioxide and methane. This feedback can accelerate climate change, but the magnitude and timing of greenhouse gas emission from these regions and their impact on climate change remain uncertain. Here we find that current evidence suggests a gradual and prolonged release of greenhouse gas emissions in a warming climate and present a research strategy with which to target poorly understood aspects of permafrost carbon dynamics.
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References
Using the deuterium isotope composition of permafrost meltwater to constrain thermokarst lake contributions to atmospheric CH4 during the last deglaciation
Laura Brosius,K. M. Walter Anthony,Guido Grosse,J. Chanton,Louise M. Farquharson,Pier Paul Overduin,Hanno Meyer +6 more
TL;DR: In this paper, the authors demonstrate that meltwater from permafrost ice serves as an H source to CH4 production in thermokarst lakes, allowing for region-specific reconstructions of ΔDCH4 emissions from Siberian and North American lakes.
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Late Quaternary paleoenvironmental records from the western Lena Delta, Arctic Siberia
Lutz Schirrmeister,Guido Grosse,Moritz Schnelle,Margret C. Fuchs,Matthias Krbetschek,Mathias Ulrich,Viktor V. Kunitsky,Mikhail N. Grigoriev,Andrei Andreev,Frank Kienast,Hanno Meyer,O Babiy,Irina Klimova,Anatoly A Bobrov,Sebastian Wetterich,Georg Schwamborn +15 more
TL;DR: The second and third terraces of the Lena Delta were formed during different stages of the late Quaternary, and the permafrost deposits on the second terrace are radiocarbon-dated from >−52 to 16kyr BP as mentioned in this paper.
Peat accumulation in drained thermokarst lake basins in continuous, ice-rich permafrost, northern Seward Peninsula, Alaska
Guido Grosse,Miriam C. Jones,Benjamin M. Jones,K. M. Walter Anthony +3 more
- 01 Dec 2011
TL;DR: In this article, terrestrial peat thickness, bulk density, organic matter content, and basal radiocarbon age from permafrost cores, soil pits, and exposures in vegetated, drained lake basins were used to characterize regional lake drainage chronology, C accumulation rates, and the role of thermokarst-lake cycling in carbon dynamics throughout the Holocene on the northern Seward Peninsula, Alaska.
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•Book
Policy Implications of Warming Permafrost
Kevin Schaefer,Hugues Lantuit,Vladimir E. Romanovsky,Edward A. G. Schuur +3 more
- 01 Nov 2012
TL;DR: In this article, the authors describe fundamental physical and biological processes that shape the permafrost landscape using the best scientific information available from published literature and discuss the impacts of a changing climate on ecosystems and human infrastructure.
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Report from the International Permafrost Association: state of permafrost in the first decade of the 21st century
Jerry Brown,Vladimir E. Romanovsky +1 more
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