Chancellor Rachel Reeves announced the Labour government was backing plans for a third runway at Heathrow in January this year.
Reeves said Heathrow expansion, delayed for decades over environmental concerns, would “make Britain the world’s best connected place to do business” and boost economic growth.
At the time, the government said the expansion “must be delivered in line with the UK’s legal, environmental and climate obligations”.
The expansion of Heathrow has long been opposed by green groups and it is expected to face resistance and probably legal challenges, not least because of its environmental impact.
In July, the CEO of Heathrow Airport, Thomas Woldbye, insisted the expansion proposal was in line with the aviation industry’s target to be net zero by 2050.
But he acknowledged that planning permission would not be granted by the government unless legal limits of emissions were adhered to.
The government wants to review planning guidelines that will shape its decisions to expand Heathrow, Gatwick and other major airports.
Giving evidence to MPs this week, the CCC’s chief economist, Dr James Richardson, said it wasn’t too late to influence the review, which has not been launched yet.
But Labour MP Barry Gardiner said he was seriously worried the CCC was “acquiescing in what the government is planning for aviation”.
He questioned why the government had not sought the CCC’s advice before announcing its support for Heathrow’s expansion.