Coupled European and Greenland last glacial dust activity driven by North Atlantic climate

• DOI: 10.1073/pnas.1712651114
• Publication Date: 2017-11-27T20:00:42Z
• Authors: Gábor Újvári; Thomas Stevens; Mihály Molnár; Attila Demény; Fabrice Lambert; György Varga; A. J. Timothy Jull; Barna Páll-Gergely; Jan-Pieter Buylaert; János Kovács
• Keywords: Glaciares - Europa; Radiocarbon dating; Glaciología; 550; Dust; Hielo marino; Multidisciplinär geovetenskap; 01 natural sciences; Climatología; PNAS Plus; QE04 Meteorology / meteorológia; 13. Climate action; Dansgaard−Oeschger events; European loess; /dk/atira/pure/sustainabledevelopmentgoals/climate_action; name=SDG 13 - Climate Action; Geosciences, Multidisciplinary; QE Geology / földtudományok; Mollusk shell; Ciencias de la tierra; QE02 Geochemistry / geokémia; 0105 earth and related environmental sciences

Significance Atmospheric dust is a major component of climate change. However, the relationship between glacial continental dust activity and abrupt centennial–millennial-scale climate changes of the North Atlantic is poorly known. Recent advances in high-precision radiocarbon dating of small gastropods in continental loess deposits provide an opportunity to gain unprecedented insights into dust variations and its major drivers at centennial–millennial scales from a near-source dust archive. Here, we show that Late Quaternary North Atlantic temperature and dustiness in Greenland and Europe were largely synchronous and suggest that this coupling was driven via precipitation changes and large-scale atmospheric circulation.