The Cold War's wildest dreams of climate control have made a spectacular comeback: from the USA to China, 'geo-engineers' promise to make climate change the way we want. And they have found powerful supporters among lobbyists and entrepreneurs. This film is an investigation into the world-wide boom in geo-engineering. How did a pseudo-science with a controversial past become a planet-wide research subject?
| Actor | Role |
|---|---|
| CClive HamiltonSelf | Self |
| NNathan MyhrvoldSelf | Self |
| DDavid KeithSelf | Self |
| MMatthew WatsonSelf | Self |
| MMatthew WatsonSelf - Volcanologist | Self - Volcanologist |
| DDavid KeithSelf - Physicist | Self - Physicist |
| CClive HamiltonSelf - Ethics researcher | Self - Ethics researcher |
| NNathan MyhrvoldSelf - Researcher | Self - Researcher |
 Connie HedegaardSelf | Self |
| LLee LaneSelf - Political Scientist | Self - Political Scientist |
| SStewart M. PatrickSelf - Political Scientist | Self - Political Scientist |
| RRégis BridaySelf - Philosopher | Self - Philosopher |
| KKristine C. HarperSelf - Science Historian | Self - Science Historian |
| KKen CaldeiraSelf - Climate Researcher | Self - Climate Researcher |
| OOliver MortonSelf - Science Reporter | Self - Science Reporter |
 Edward TellerSelf - Nuclear Physicist | Self - Nuclear Physicist |
| MMichael MacCrakenSelf - Climate Researcher | Self - Climate Researcher |
| PPaul J. CrutzenSelf - Atmosphere Chemist | Self - Atmosphere Chemist |
| LLowell WoodSelf - Astro Physicist | Self - Astro Physicist |
 Marianne DenicourtNarrator | Narrator |