UC Davis Professor Paul Gepts shows some of the bean seeds he has collected from Central and South America. Most of the beans we eat today are derived from one or two wild plants. Photo by Lauren Sommer

"Seed saving" is a technique that has largely fallen by the wayside in modern agriculture. And that's reduced the genetic diversity of the crops we rely on. But now, a handful of groups in the San Francisco Bay Area are starting their own seed-saving efforts.
Reporter: Lauren Sommer

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