Ben Jealous, the former NAACP president, is taking charge as the new executive director of the Sierra Club. It’s America’s largest and most influential grassroots environmental organization with nearly 4 million members and supporters.

With a strategy focused on equity and activism, Jealous and the Sierra Club are committed to retiring coal plants, preventing new fossil fuel plants from being built, and working to stop the expansion of fracked gas.

Jealous joins hosts Mark Masselli and Margaret Flinter to talk about his vision and discuss his new book, “Never Forget Our People Were Always Free: A Parable of American Healing.”