Bjørn LomborgSelf - Director, Copenhagen Consensus Center Hashem AkbariSelf - Head of Heat Island Group, Berkeley Lab Al GoreSelf (archive footage) James HansenSelf - Director, NASA Institute for Space Studies Barack ObamaSelf (archive footage) Barry GlassnerSelf - Sociologist, USC and Author, 'The Culture of Fear' Richard LindzenSelf - Professor of Atmospheric Science, MIT Nathan MyhrvoldSelf - Founder, Intellectual Ventures Daniel NoceraSelf - Professor of Energy and Chemistry, MIT Thomas SchellingSelf- Economist, Nobel Laureate Jonathan TrentSelf - OMEGA Project Scientist, NASA Ames Research Center Joe BartonSelf (archive footage) John DingellSelf (archive footage) Terry BotwickManusforfatter 
