About the Author

David is a Professor of Earth and Space Sciences at the University of Washington. He is a MacArthur Fellow who studies the evolution of topography and the influence of geomorphological processes on ecological systems and human societies. He received his B.S. in geology at Stanford and his Ph.D. in geomorphology from UC Berkeley. His published research includes studies of the evolution and near-extirpation of salmon, fluvial and hillslope processes in mountain drainage basins, the evolution of mountain ranges (Cascades, Andes, and Himalaya). He is the author of award-winning popular-science books (King of Fish, Dirt, and The Rocks Don't Lie) and co-authored The Hidden Half of Nature: The Microbial Roots of Life and Health with his wife, biologist Anne Biklé.

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Healthy soil…here and everywhere…is the real key to feeding the world

One of the biggest modern myths about agriculture is that organic farming is inherently sustainable. It can be, but it isn’t necessarily. After all, soil erosion from chemical-free tilled fields undermined the Roman … [Read more...]