People are now in charge of the Earth and we are destroying it. Robert Krulwich writes that Planet Earth is Under New Management. We are no longer in the age of the Holocene.

Earth is being dramatically changed, and the changer, this time, is us: humankind (“anthro” in the Greek). “We are no longer in the Holocene,” he told the group. “We are in the Anthropocene.” It’s a coinage he may have borrowed from biologist Eugene Stoermer, but here’s the logic: The Earth is no longer being shaped mainly by natural forces, forces that operate on their own with a logic of their own. Our little blue dot is now, increasingly, sculpted by one of its inhabitants. This is our planet now. We’ve taken over.