doi:10.1073/pnas.1619615114engPérez-Mejías, CarlosMoreno, AnaSancho, CarlosBartolomé, MiguelStoll, HeatherCacho, IsabelCheng, HaiEdwards, R. LawrenceAbrupt climate changes during Termination III in Southern EuropeART-2017-101616The Late Quaternary glacial–interglacial transitions represent the highest amplitude climate changes over the last million years. Unraveling the sequence of events and feedbacks at Termination III (T-III), including potential abrupt climate reversals similar to those of the last Termination, has been particularly challenging due to the scarcity of well-dated records worldwide. Here, we present speleothem data from southern Europe covering the interval from 262.7 to 217.9 kyBP, including the transition from marine isotope stage (MIS) 8 to MIS 7e. High-resolution d13C, d18O, and Mg/Ca profiles reveal major millennial-scale changes in aridity manifested in changing water availability and vegetation productivity. uranium–thorium dates provide a solid chronology for two millennial-scale events (S8.1 and S8.2) which, compared with the last two terminations, has some common features with Heinrich 1 and Heinrich 2 in Termination I (T-I).2017http://zaguan.unizar.es/record/6523110.1073/pnas.1619615114http://zaguan.unizar.es/record/65231oai:zaguan.unizar.es:65231info:eu-repo/grantAgreement/ES/MINECO/CGL2016-77479-Rinfo:eu-repo/grantAgreement/ES/MINECO/CTM2013-48639-C2-2-RProceedings of the National Academy of Sciences 114, 38 (2017), 10047-10052byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess