If current world population trends continue, human numbers will double during the 22nd century. But how many is too many? Family planning expert Bob Gillespie travels around the world to report on stories that illustrate how the question of human population is inextricably tied to issues of women's roles and education, public health, sex and birth control, and sustainable resources and consumerism. He also discovers remarkable changes occurring in country after country as dedicated people, increased education, and social programs result in smaller family sizes and the empowerment of women and children.