OPENAIRE OpenAire Datacite Sygma Bielefeld Academic Search Engine (BASE) DOAJ Crossref Microsoft Academic Graph CNR ExploRA Europe PubMed Central Vrije Universiteit Amsterdam (VU Amsterdam) – Research Portal UnpayWall IRIS Cnr OpenAPC Global Initiative PubMed Central European Union Open Data Portal https://www.nature.com/articles/ncomms13653.pdf https://doi.org/10.1038/ncomms13653 Nature Communications Open Access 2016-11-29 2017-07-05 2024-02-20 Abstract<p>Recent hypotheses, based on atmospheric records and models, suggest that permafrost carbon (PF-C) accumulated during the last glaciation may have been an important source for the atmospheric CO2 rise during post-glacial warming. However, direct physical indications for such PF-C release have so far been absent. Here we use the Laptev Sea (Arctic Ocean) as an archive to investigate PF-C destabilization during the last glacial￢ﾀﾓinterglacial period. Our results show evidence for massive supply of PF-C from Siberian soils as a result of severe active layer deepening in response to the warming. Thawing of PF-C must also have brought about an enhanced organic matter respiration and, thus, these findings suggest that PF-C may indeed have been an important source of CO2 across the extensive permafrost domain. The results challenge current paradigms on the post-glacial CO2 rise and, at the same time, serve as a harbinger for possible consequences of the present-day warming of PF-C soils.</p 550 Science Q Permafrost Carbon cycle (Biogeochemistry) Climatic changes Biogeochemistry 15. Life on land 01 natural sciences Article 13. Climate action SDG 13 - Climate Action SDG 14 - Life Below Water LAPTEV SEA SHELF; PARTICULATE ORGANIC-MATTER; LAST GLACIAL TERMINATION; ADJACENT NEARSHORE ZONE; GREENLAND STADIAL 1; LENA RIVER DELTA; INTERIOR ALASKA; YOUNGER DRYAS; ARCTIC-OCEAN; NE SIBERIA Cryosphere 0105 earth and related environmental sciences Jorien E. Vonk, Igor Semiletov, Igor Semiletov, Örjan Gustafsson, Nina Kirchner, Riko Noormets, Francesco Muschitiello, Martin Jakobsson, Martin Jakobsson, Tommaso Tesi, Oleg Dudarev, P. Hill, Rienk H. Smittenberg, August Andersson, 2016-11-29 journalpaper Abstract<p>Recent hypotheses, based on atmospheric records and models, suggest that permafrost carbon (PF-C) accumulated during the last glaciation may have been an important source for the atmospheric CO2 rise during post-glacial warming. However, direct physical indications for such PF-C release have so far been absent. Here we use the Laptev Sea (Arctic Ocean) as an archive to investigate PF-C destabilization during the last glacial￢ﾀﾓinterglacial period. Our results show evidence for massive supply of PF-C from Siberian soils as a result of severe active layer deepening in response to the warming. Thawing of PF-C must also have brought about an enhanced organic matter respiration and, thus, these findings suggest that PF-C may indeed have been an important source of CO2 across the extensive permafrost domain. The results challenge current paradigms on the post-glacial CO2 rise and, at the same time, serve as a harbinger for possible consequences of the present-day warming of PF-C soils.</p Massive remobilization of permafrost carbon during post-glacial warming 10.1038/ncomms13653 695331