What does family mean to you? Paul Ehrlich made his mark as a world famous environmentalist with the publication of The Population Bomb in 1968. Ehrlich now believes that our very survival may depend on expanding our capacity for empathy and our understanding of the human family.
Guest
Paul R. Ehrlich, Bing Professor of Population Studies and president of the Center for Conservation Biology at Standford University; co-author Humanity on a Tightrope
