Climate of Doubt by FRONTLINE | PBS published on 2013-02-11T18:22:11Z An audio version of FRONTLINE's documentary "Climate of Doubt" airing October, 23 2012 on PBS and available for viewing online at pbs.org/frontline. Four years ago, climate change was a hot issue and politicians from both sides seemed poised to act. Today public opinion on the climate issue has cooled considerably. Politicians either ignore it or proclaim their skepticism. What's behind this massive reversal? On Oct 23, FRONTLINE goes inside the organizations that fought the scientific establishment to shift the direction of the climate debate.