Extraordinary human energy consumption and resultant geological impacts beginning around 1950 CE initiated the proposed Anthropocene Epoch oleh Jaia Syvitski, Colin N. Waters, John Day, John D. Milliman, Colin Summerhayes, Will Steffen, Jan Zalasiewicz, Alejandro Cearreta, Agnieszka Gałuszka, Irka Hajdas, Martin J. Head, Reinhold Leinfelder, J. R. McNeill, Clément Poirier, Neil L. Rose, William Shotyk, Michael Wagreich, Mark Williams