In warehouses, bunkers, basements, and skyscrapers, urban hydroponic farms produce food without soil at all; meanwhile, exobiologists are inventing ways to grow food among the stars. In our final episode of “The Thin Layer,” we ask: in these futures, is there still a place for soil?

Presented by Dan Crane Written by Ian Steadman & Eli Lee Sound design by Laura Irving

Made with the support of The Bill & Melinda Gates Foundation

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