Many writers have warned about the perils of climate change. But few novelists have succeeded in turning scientific data into gripping fiction. The best-selling author of “The Lacuna” and “The Poisonwood Bible” hopes to change that. Barbara Kingsolver’s latest book tells the story of Dellarobia Turnbow, a young mother trapped in rural poverty, who discovers millions of butterflies glowing like a “lake of fire” in a pasture. That vision — which stops her from an adulterous tryst – and its aftermath becomes a wake-up call about climate change for an Appalachian community. It also marks the beginning of a new life for her. Join Diane for her interview with author Barbara Kingsolver.