In basements and skyscrapers, urban hydroponic farms produce food without soil at all; meanwhile, exobiologists are inventing ways to grow food among the stars.

Are our lives too clean? Soil’s role in the biggest pandemic you’ve never heard of, and soil as a source of miraculous medicines.

In this episode, we dive into the story of the Dust Bowl, which decimated 250,000 square miles of land in the United States in the 1930s —and Hugh Bennett, the man who saw it coming.