Outspoken British Airways chief executive Willie Walsh has had his knuckles rapped for claiming that the third runway would reduce CO2 emissions.
The day after the consultation, Willie wrote to tens of thousands of members of BA's executive club, claiming that the third runway would save 330,000 tonnes of CO2 as less planes would need to stack in the skies above London, and urging them to write in support of expansion.
The Advertising Standards Agency wrote to Walsh, pointing out that the third runway would actually see 2.6 million tonnes more CO2, from the 220,000 extra flights each year, and ordered him to write a correction. Walsh has so far refused to say whether he will comply.