Anthropocene: event or epoch? Bauer, Andrew M. ; Edgeworth, Matthew ; Edwards, Lucy E. ; Ellis, Erle C. ; Gibbard, Philip ; Merritts, Dorothy J. Abstract Letter to the Editor Publication: Nature Pub Date: September 2021 DOI: 10.1038/d41586-021-02448-z Bibcode: 2021Natur.597..332B