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Peter Brannen
Writer
Peter Brannen is a contributing writer at The Atlantic. He is the author of The Ends of the World, about the biggest mass extinctions in Earth’s history. His work has also appeared in the New York Times, the Washington Post, and other publications.
How taming fire made us human
In this excerpt from "The Story of CO2," Peter Brennan explains how changes in the Earth's ecosystem led to fire, which in turn led our ancestors to become the "fire apes."