What if Homo sapiens suddenly went extinct? We imagine environmental poster boy Al Gore would be tickled pink, even though he was dead. Author Alan Weisman takes a counterintuitive approach in his "thought experiment" The World Without Us, contending, among other intriguing things, that rats and roaches would themselves struggle for survival without our unintentional munificence -- something that would make mothers the world over jump for joy, even though they were dead. Signing restrictions apply; call for info.
Thu., Sept. 27, 7 p.m., 2007