§ Mr. DalyellTo ask the Secretary of State for the Environment, Transport and the Regions what study he is making of the impact of Concorde on the ozone layer relative to that of aerosols and sulphur particles; and if he will make a statement. [4505]
§ Ms Glenda JacksonThe importance of aerosols and particles emitted from aircraft has only recently been recognised and there is still uncertainty about the effects. Some data on emissions of oxides of nitrogen (NOx) from Concorde are in the ANCAT/EC Global Inventory of NOx Emissions from Aircraft, in which the UK has taken a leading role. The date are being used extensively by stratospheric ozone researchers and climate modellers internationally.