Even the BBC are at it. In a recent article on the News about vehicular pollution, film was shown taken with an Infra-red camera of the exhaust plume coming from the tailpipe of a London bus. The commentary was to the effect that this showed the CO and CO2 pollution that it was expelling. No it didn't, all the IR camera was showing was that the exhaust gasses were hotter than the surrounding atmosphere, and did not and could not show the composition of those gasses. I wrote to the BBC to complain and their reply was that they were using the IR images to indicate the volume of exhaust gasses, and by inference, the pollution. Nice wriggle out Beeb!