Euan mearns pulled up Channel4 for claiming to have a "special camera"
that can detect CO2, when it was just a FLIR camera detecting heat

http://euanmearns.com/mortality-from-diesel-car-pollution-in-the-uk

Now the BBC claim to to have another "special camera" that can detect NO2

http://www.bbc.co.uk/news/science-environment-42566393

strange that the name of the photo includes flir in the filename