David Montgomery is a geomorphologist who looks at the process shaping Earth’s surface and how they affect ecological systems—and human societies. He has studied everything from the ways that landslides and glaciers influence the height of mountain ranges, to the way that soils have shaped human civilizations both now and in the past. He has worked in mountain ranges throughout the world, from the Cascades in the Pacific Northwest, to the Andes in South America and Tibet and the Himalaya in Central Asia. In addition to his academic work, he has written a number of popular science books, including, most recently, The Rocks Don’t Lie: A Geologist Investigates Noah’s Flood, which won the Washington State Book Award. He is an elected Fellow of the American Geophysical Union and has received many awards throughout his career, including a MacArthur Fellowship.