Mid-Pleistocene transition in glacial cycles explained by declining CO2 and regolith removal
dc.bibliographicCitation.firstPage | eaav7337 | eng |
dc.bibliographicCitation.issue | 4 | eng |
dc.bibliographicCitation.volume | 5 | eng |
dc.contributor.author | Willeit, M. | |
dc.contributor.author | Ganopolski, A. | |
dc.contributor.author | Calov, R. | |
dc.contributor.author | Brovkin, V. | |
dc.date.accessioned | 2022-11-21T07:00:45Z | |
dc.date.available | 2022-11-21T07:00:45Z | |
dc.date.issued | 2019 | |
dc.description.abstract | Variations in Earth's orbit pace the glacial-interglacial cycles of the Quaternary, but the mechanisms that transform regional and seasonal variations in solar insolation into glacial-interglacial cycles are still elusive. Here, we present transient simulations of coevolution of climate, ice sheets, and carbon cycle over the past 3 million years. We show that a gradual lowering of atmospheric CO2 and regolith removal are essential to reproduce the evolution of climate variability over the Quaternary. The long-term CO2 decrease leads to the initiation of Northern Hemisphere glaciation and an increase in the amplitude of glacial-interglacial variations, while the combined effect of CO2 decline and regolith removal controls the timing of the transition from a 41,000- to 100,000-year world. Our results suggest that the current CO2 concentration is unprecedented over the past 3 million years and that global temperature never exceeded the preindustrial value by more than 2°C during the Quaternary. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/10378 | |
dc.identifier.uri | http://dx.doi.org/10.34657/9414 | |
dc.language.iso | eng | eng |
dc.publisher | Washington, DC [u.a.] : Assoc. | eng |
dc.relation.doi | https://doi.org/10.1126/sciadv.aav7337 | |
dc.relation.essn | 2375-2548 | |
dc.relation.ispartofseries | Science Advances 5 (2019), Nr. 5 | eng |
dc.rights.license | CC BY 4.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.subject | Carbon dioxide | eng |
dc.subject | Orbits | eng |
dc.subject | Salinity measurement | eng |
dc.subject | Climate variability | eng |
dc.subject | CO2 concentration | eng |
dc.subject | Glacial-interglacial cycles | eng |
dc.subject | Global temperatures | eng |
dc.subject | Northern hemisphere glaciations | eng |
dc.subject | Seasonal variation | eng |
dc.subject | Solar insolation | eng |
dc.subject | Transient simulation | eng |
dc.subject | Glacial geology | eng |
dc.subject.ddc | 500 | eng |
dc.title | Mid-Pleistocene transition in glacial cycles explained by declining CO2 and regolith removal | eng |
dc.type | article | eng |
dc.type | Text | eng |
dcterms.bibliographicCitation.journalTitle | Science Advances | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | PIK | eng |
wgl.subject | Geowissenschaften | eng |
wgl.type | Zeitschriftenartikel | eng |
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