Lead pollution recorded in Greenland ice indicates European emissions tracked plagues, wars, and imperial expansion during antiquity.

Institutions FC
Division of Hydrologic Sciences, NSHE, United States of America (USA) 0.33
Oxford School of Archaeology, United Kingdom (UK) 0.28
Department of Atmosphere and Climate (ATMOS), NILU, Norway 0.22
Centre for Ice and Climate, NBI, Denmark 0.11
Oxford Faculty of Classics, United Kingdom (UK) 0.06