Self - Director, Copenhagen Consensus Center
Bjørn Lomborg
Self - Head of Heat Island Group, Berkeley Lab
Hashem Akbari
Self (archive footage)
Al Gore
Self - Director, NASA Institute for Space Studies
James Hansen
Self (archive footage)
Barack Obama
Self - Sociologist, USC and Author, 'The Culture of Fear'
Barry Glassner
Self - Professor of Atmospheric Science, MIT
Richard Lindzen
Self - Founder, Intellectual Ventures
Nathan Myhrvold
Self - Professor of Energy and Chemistry, MIT
Daniel Nocera
Self- Economist, Nobel Laureate
Thomas Schelling
Self - OMEGA Project Scientist, NASA Ames Research Center
Jonathan Trent
Self (archive footage)
Joe Barton
