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Pervasive Arctic lead pollution suggests substantial growth in medieval silver production modulated by plague, climate, and conflict.
McConnell JR, Chellman NJ, Wilson AI, Stohl A, Arienzo MM, Eckhardt S, Fritzsche D, Kipfstuhl S, Opel T, Place PF, Steffensen JP. McConnell JR, et al. Among authors: opel t. Proc Natl Acad Sci U S A. 2019 Jul 23;116(30):14910-14915. doi: 10.1073/pnas.1904515116. Epub 2019 Jul 8. Proc Natl Acad Sci U S A. 2019. PMID: 31285330 Free PMC article.
Extreme climate after massive eruption of Alaska's Okmok volcano in 43 BCE and effects on the late Roman Republic and Ptolemaic Kingdom.
McConnell JR, Sigl M, Plunkett G, Burke A, Kim WM, Raible CC, Wilson AI, Manning JG, Ludlow F, Chellman NJ, Innes HM, Yang Z, Larsen JF, Schaefer JR, Kipfstuhl S, Mojtabavi S, Wilhelms F, Opel T, Meyer H, Steffensen JP. McConnell JR, et al. Among authors: opel t. Proc Natl Acad Sci U S A. 2020 Jul 7;117(27):15443-15449. doi: 10.1073/pnas.2002722117. Epub 2020 Jun 22. Proc Natl Acad Sci U S A. 2020. PMID: 32571905 Free PMC article.