{"refrec":{"BRefID":344951,"RR":"<b>Cavalheiro, L.; Wagner, T.; Steinig, S.; Bottini, C.; Dummann, W.; Esegbue, O.; Gambacorta, G.; Giraldo-Gómez, V.; Farnsworth, A.; Flögel, S.; Hofmann, P.; Lunt, D.J.; Rethemeyer, J.; Torricelli, S.; Erba, E.</b> (2021). Impact of global cooling on Early Cretaceous high pCO<sub>2</sub> world during the Weissert Event. <i>Nature Comm. 12(1)</i>: 5411. <a href=\"https://dx.doi.org/10.1038/s41467-021-25706-0\" target=\"_blank\">https://dx.doi.org/10.1038/s41467-021-25706-0</a>","BEntID":341586,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Nature Comm. 12(1)</i>: 5411. <a href=\"https://dx.doi.org/10.1038/s41467-021-25706-0\" target=\"_blank\">https://dx.doi.org/10.1038/s41467-021-25706-0</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Cavalheiro, L.; Wagner, T.; Steinig, S.; Bottini, C.; Dummann, W.; Esegbue, O.; Gambacorta, G.; Giraldo-Gómez, V.; Farnsworth, A.; Flögel, S.; Hofmann, P.; Lunt, D.J.; Rethemeyer, J.; Torricelli, S.; Erba, E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Cavalheiro, L. <i>et al.</i>","Englishabstract":"The Weissert Event ~133 million years ago marked a profound global cooling that punctuated the Early Cretaceous greenhouse. We present modelling, high-resolution bulk organic carbon isotopes and chronostratigraphically calibrated sea surface temperature (SSTs) based on an organic paleothermometer (the TEX<sub>86</sub> proxy), which capture the Weissert Event in the semi-enclosed Weddell Sea basin, offshore Antarctica (paleolatitude ~54 °S; paleowater depth ~500 meters). We document a ~3–4 °C drop in SST coinciding with the Weissert cold end, and converge the Weddell Sea data, climate simulations and available worldwide multi-proxy based temperature data towards one unifying solution providing a best-fit between all lines of evidence. The outcome confirms a 3.0 °C ( ±1.7 °C) global mean surface cooling across the Weissert Event, which translates into a ~40% drop in atmospheric <i>p</i>CO<sub>2</sub> over a period of ~700 thousand years. Consistent with geologic evidence, this <i>p</i>CO<sub>2</sub> drop favoured the potential build-up of local polar ice.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Impact of global cooling on Early Cretaceous high pCO<sub>2</sub> world during the Weissert Event","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-13 01:31:50.918698","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2021-09-17","DateCreate":"2021-09-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000700373400007","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41467-021-25706-0"},"refs":null,"anarec":{"AnaID":344951,"PubliDate":2021,"Pagination":"5411","XtraPublOfAnaID":null,"ISBN":null,"Volume":"12","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":198717,"SerRR":"Nature Communications. 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