Stewart Brand

Stewart Brand

饰：Himself

Gwyneth Cravens

Gwyneth Cravens

饰：Herself

Mark Lynas

Mark Lynas

饰：Himself

Richard Rhodes

Richard Rhodes

饰：Himself

Michael Shellenberger

Michael Shellenberger

饰：Himself

Charles Till

Charles Till

饰：Himself

Robert Kennedy Jr.

饰：Self - Environmental Activist,(archive footage) (as Robert Kennedy Jr.)

Helen Caldicott

饰：Self - Environmental Activist

Ted Nordhaus

饰：Self - Environmental Activist

Amory Lovins

饰：Self - Environmental Scientist,(archive footage)

James Inhofe

饰：Self - Senator, Oklahoma,(archive footage)