On this episode of Blue Dot, Dave talks to Gleb Raygorodetsky about his new book " The Archipelago of Hope ." In it, the National Geographic correspondent and scientist tells the stories of six indigenous peoples from around the world. For the past two decades Raygorodetsky has lived with and documented people like the Skolt Sami of Finland, the Nenets and Altai of Russia, the Karen of Myanmar and the Tla-o-qui-aht of British Columbia. These peoples don't debate the existence of human-induced