No one can realistically argue that humans haven’t dramatically transformed the face of the planet. But now scientists, who love naming things, propose that humankind has so altered the Earth that that we have brought about an end to one epoch and entered a new age, as different from our recent ancestors' time as the Jurassic was from the Cambrian.
Nobel laureate Paul Crutzen calls it the Anthropocene, with "anthro" signifying humanity's biospheric impact. They suggest humans have so changed the Earth that it’s time the Holocene epoch was officially ended.
link: "The Anthropocene": Are We Living in a New Geological Era? Experts Say "Yes"
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