Sep 25, 2012 — The U.S. has just experienced one of the hottest, and most extreme summers of weather in its history. But climate change hasn't been much of an issue in this year's presidential race.

Michael Mann is a Nobel Prize-winning climate scientist at Pennsylvania State University. He's familiar with both the science and politics of climate change. And he's speaking this evening as part of St. Lawrence University's forum on the issue.

People who deny climate change - and want to prove that it's a fraud - have focused much of their effort on Mann. He joined Martha Foley in the studio to talk climate and politics.  Go to full article