Journalist, social activist, and professor Saumya Roy joins Zibby to talk about her first book, Castaway Mountain, which is the culmination of eight years of interviews with and research on the wastepickers in the garbage landfill of Mumbai. Saumya shares how she first became involved with wastepickers after she and her father began a non-profit that offers loans to microentrepreneurs and was approached by a number of those who managed the landfill. She wanted to not only show the world who these individuals are and how they have built their lives but also how we as a global community are constantly generating waste which greatly contributes to climate change.