Colonization of the Americas, 'Little Ice Age' climate, and bomb-produced carbon: Their role in defining the Anthropocene
Zalasiewicz, J; Waters, Colin; Barnosky, Anthony D.; Cearreta, Alejandro; Edgeworth, Matt; Ellis, Erle; Galuszka, Agnieszka; Gibbard, Phillip; Grinevald, Jacques; Hajdas, Irka; Ivar do Sul, Juliana; Jeandel, Catherine; Leinfelder, Reinhold; McNeill, John R; Poirier, Clement; Revkin, Andrew; Richter, Daniel deB; Steffen, Will; Summerhayes, Colin; Syvitski, James; Vidas, Davor; Wagreich, Michael; Williams, Mark; Wolfe, Alexander P.
A recently published analysis by Lewis and Maslin (Lewis SL and Maslin MA (2015) Defining the Anthropocene. Nature 519: 171–180) has identified two new potential horizons for the Holocene−Anthropocene boundary: 1610 (associated with European colonization of the Americas), or 1964 (the peak of the excess radiocarbon signal arising from atom bomb tests). We discuss both of these novel suggestions, and consider that there is insufficient stratigraphic basis for the former, whereas placing the...[Show more]
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