Today's program originally aired on 2/5/2010.

Today on the show we’ve got a series of conversations about environmentalism and the changing culture surrounding what it means to be “green.”  We’ll talk with two Yale Students back from their first Climate summit in Copenhagen and with a philosopher trying to understand the increasingly common phenomenon of “green guilt.”  We’ll also talk with Colin Beaven, known to many as “No Impact Man” about his quest to radically shrink his carbon footprint. We’ll find out how his experiment impacted his work, his weight, and his wife.