The most recent assessment of the economic case for the additional capacity at Stansted airport supported in the “Future of Air Transport” White Paper was reported in “UK Air Passenger Demand and CO2 Forecasts”, available at:
http://www.dft.gov.uk/pgr/aviation/environmentalissues/ukair demandandco2forecasts/
We expect to provide an update to this report, taking account of revised economic projections, when we announce policy decisions on the future development of Heathrow airport later this year.