Environmental Defense Fund Works in Walmart's Backyard

The non-profit Environmental Defense Fund, established in 1967, is headquartered in New York, with offices in San Francisco, Washington D.C., China,  Europe—and Bentonville, Arkansas. For nearly a decade, EDF has worked discreetly with Walmart on sustainability policies and practices. We talk with Michelle Mauthe Harvey, supply chain director with the corporate partnership program at EDF.