"The lay public, when presented with confusing data and competing arguments about climate change, deploy the mental shortcut of believing the people they most trust."
Oh, you mean confusing data such as the fact that there has been no global temperature rise in the last decade?
In fact, just the opposite is happening. Because the internet has broken the media's stranglehold on the dissemination of information, we've been able to get the facts and conclude that "global warming" pitchmen are liars. Otherwise, Marshall and his ilk WOULD be able to con us by confusing us and managing our perception of people on both sides of the issue, which he seems to admit above has been his strategy.