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dc.contributor.authorPanieri, Giuliana
dc.contributor.authorKnies, Jochen Manfred
dc.contributor.authorVadakkepuliyambatta, Sunil
dc.contributor.authorLee, Amicia
dc.contributor.authorSchubert, Carsten J.
dc.date.accessioned2023-04-12T11:15:27Z
dc.date.available2023-04-12T11:15:27Z
dc.date.issued2023-04-08
dc.description.abstractDuring the Pleistocene, Earth’s climate changed dramatically. The mid-Pleistocene transition (MPT; ~1.3–0.7 million years (Ma)) featured an important ice volume increase at both poles. The evolution of large Arctic ice sheets caused the sequestration of methane as free gas and hydrates in subseabed sediments. Ice volume changes, associated with variable pressures and temperatures, perturbed those giant reservoirs, causing methane leakages. Here, we present borehole data from the Arctic–Atlantic gateway region, providing foraminiferal stable carbon isotope and source-specific biomarker evidence that reveals three main seafloor leakage episodes that occurred prior to and across the mid-Pleistocene transition. By combining borehole data with hydrate stability modelling, we propose that tectonic stress changes associated with large ice volume early build-up and wastage during the midPleistocene controlled episodic methane leakages from subsurface reservoirs. Our data indicate methane release, showing a potential scenario for vast Arctic areas storing methane that are now affected by ongoing ice volume decrease.en_US
dc.identifier.citationPanieri G, Knies J, Vadakkepuliyambatta S, Lee AL, Schubert CJ. Evidence of Arctic methane emissions across the mid-Pleistocene. Communications Earth & Environment. 2023;4en_US
dc.identifier.cristinIDFRIDAID 2139864
dc.identifier.doi10.1038/s43247-023-00772-y
dc.identifier.issn2662-4435
dc.identifier.urihttps://hdl.handle.net/10037/28957
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.journalCommunications Earth & Environment
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleEvidence of Arctic methane emissions across the mid-Pleistoceneen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)