饰：(as Dr Martin Van Kranendonk)

饰：(as Prof Mark McMenamin)

饰：(as Prof Pall Einarsson)

饰：(as Prof Frederick Rich)

饰：(as Dr Reese Barrick)

饰：(as Dr Jack Robey)

饰：(as Prof Adrian Pfiffner)

饰：Self - Geologist, Grand Canyon Field Institute

饰：Self - Climatologist, University of Iceland

饰：(as Dr Joerg Schaeffer)

饰：Himself

饰：Himself

饰：Narrator

配：自己

饰：自己