Craig Childs chronicles the last millennia of the Ice Age, the violent oscillations and retreat of glaciers, the clues and traces that document the first encounters of early humans, and the animals whose presence governed the humans chances for survival.

With the cadence of his narrative moving from scientific observation to poetry, he reveals how much has changed since the time of mammoth hunters, and how little. Across unexplored landscapes yet to be peopled, readers will see the Ice Age, and their own age, in a whole new light.

Craig Childs is a writer, wanderer and contributing editor at High Country News, commentator for NPR's Morning Edition, and teaches writing at University of Alaska and the Mountainview MFA at Southern New Hampshire University. His books include Atlas of a Lost World: Travels in Ice Age America (2019), Apocalyptic Planet (2013) and House of Rain (2008).

"Tracking the First People into Ice Age North America" was given on August 4, 2020 as part of Long Now's Seminar series. The series was started in 2003 to build a compelling body of ideas about long-term thinking from some of the world's leading thinkers.