We look at the topic of soil from three people's perspectives: Scientist Josef Biechler, part of breakthrough research on reversing atmospheric carbon levels through agricultural practices and the NGO, Carbon Underground that is seeking to get word out about it; Martin Prechtel, author of The Smell of Rain on Dust, and indigenous teacher on the meaning of soil, living with integration in the universe, and the Mayan calendar; Roger Maddox, Iowa resident who is restoring a more-than-400-acre plot of land to its natural prairie state. Produced by Sprouts.