On August 29, in a historic moment in the history of the planet, the 35-member Anthropocene Working Group (AWG) reported to the International Geological Congress that the Anthropocene epoch in geological history is "stratigraphically real" and should be dated as arising around 1950, displacing the Holocene epoch of the last 12,000 years. The AWG has yet to arrive at a formal decision that would adopt a definite global "signal" (though ten of the thirty-five members currently support using fallout radionuclides from atomic weapons testing as the signal), which would be followed by the designation of a "golden spike" or actual location in the rock, sediment, or ice strata. Yet the general parameters of the onset of the new epoch are clear.… As Colin Waters, secretary of the AWG, explained: "Being able to pinpoint an interval of time is saying something about how we have had an incredible impact on the environment of our planet. The concept of the Anthropocene manages to pull all these ideas of environmental change together." Most importantly, it tells us that the world economy has generated an anthropogenic rift in the Earth system threatening millions of species, including our own, requiring fundamental changes in the way in which society relates to the earth through production.