The film's other scientific claims can be similarly dismissed. Carl Wunsch - who, as discussed, appeared in the film - comments:
What we now have is an out-and-out propaganda piece, in which there is not even a gesture toward balance or explanation of why many of the extended inferences drawn in the film are not widely accepted by the scientific community. There are so many examples, it's hard to know where to begin, so I will cite only one: a speaker asserts, as is true, that carbon dioxide is only a small fraction of the atmospheric mass. The viewer is left to infer that means it couldn't really matter. But even a beginning meteorology student could tell you that the relative masses of gases are irrelevant to their effects on radiative balance. A director not intending to produce pure propaganda would have tried to eliminate that piece of disinformation. (http://ocean.mit.edu/~cwunsch/ papersonline/channel4response)
LOL... that's like asking Satan why Jesus Christ is not the Savior...
Or, in context of this article, it's like asking those scientists whose e-mails were just exposed, why critics of Anthropogenic Global Warming are wrong. :-)
You're asking the fox to guard the henhouse (the henhouse of so-called scientific inquiry). I'm afraid the fox has already eaten the chickens and is getting ready to eat the rest of us... LOL...
Sometimes a picture really is worth thousands of words.
You should read Wunsch's comments. He was duped. He was interviewed, told them a lot about physical oceanography and how the oceans absorb and release CO2, and a short out-of-context quote was used in the GGWS. He told them much more, such as (with my emphasis added):
"An example where my own discussion was grossly distorted by context:
I am shown explaining that a warming ocean could expel more carbon dioxide than it absorbs -- thus exacerbating the greenhouse gas buildup in the atmosphere and hence worrisome. It was used in the film, through its context, to imply that CO2 is all natural, coming from the ocean, and that therefore the human element is irrelevant. This use of my remarks, which are literally what I said, comes close to fraud."
And of course there's more: