In this episode, journalist Alan Weisman, Laureate Associate Professor in Journalism and Latin American Studies at the University of Arizona, discusses his new book "The World Without Us," a massive thought experiment about the aftermath of humanity's sudden disappearance. Plus we'll test your knowledge of some recent science in the news. For info on and articles by Alan Weisman, go to www.homelands.org/producers/weisman.html
Learn more about your ad choices. Visit megaphone.fm/adchoices
