Watching this documentary, makes me think two things:
a) These scientists are about to loose their jobs, their reputations, and possibly their entire lives over their appearances in this piece, and
b) The counter-arguments to this documentary are so weak, feeble, and either misleading or confused in themselves I have to wonder just who they think they're kidding.
My doubts about human induced global warming have always come from two facts no one has been able to explain away to my satisfaction: world temperatures lowered in the past century when carbon emissions increased, and existing climate graphs are doctored to discount a period of climate history called the "little ice age" which has plenty of historical evidence proving it's existence.
Until those two facts are reasonably explained away by the enlightened few out there my stance will remain the same: CO2 caused global warming is either exaggerated or non-existent.