Frances Moore Lappé has working toward sustainability and biodiversity for more than 40 years. But one day, in the middle of a conference about climate change, she started to wonder if people were telling the story all wrong. That got her thinking about the assumptions underlying the public conversation about climate change. Rather than despair and fear, she says, we need hope.
You can also listen to our interview with Wangari Maathai about reforesting Africa.