John Hockenberry on How Skeptics Changed the Politics of Climate Change
Published on Oct 23, 2012 by PBSNewsHour
For more on this story visit The PBS NewsHour at http://www.pbs.org/newshour
or Frontline at http://www.pbs.org/frontlineworld
NewsHour's Hari Sreenivasan talks to John Hockenberry about Frontline documentary "Climate of Doubt," which examines how the political climate around global warming has changed in the last four years.