 In December 2006 the government published the Air Transport White Paper Progress Report 2006 to report on progress made in " … delivering a sustainable future for aviation . " The report re @-@ iterates the government ’ s commitment to the strategy defined in the original White Paper , stating that it " … strikes the right balance between economic , social and environmental goals . " It also reports that ; the extra runway at Edinburgh airport is now thought unlikely to be needed before 2020 ; Bristol airport does not currently see a case to support extending its runway , although the option will be kept under review ; the additional runway at Stansted airport is not expected to be operational before 2015 ; and the runway extension at Liverpool airport is now being proposed for early next decade . Elsewhere , recent forecasts conducted for Birmingham airport indicate that a new runway will not be required there before 2030 . 
