Reasons to be hopeful about the climate, according to Bill Weir

Christiane Amanpour speaks with CNN’s Bill Weir about his new book, “Life As We Know It (Can Be)”, the wonders of our planet, and the stories that connect us.Christiane Amanpour speaks with CNN’s Bill Weir about his new book, “Life As We Know It (Can Be)”, the wonders of our planet, and the stories that connect us.