§ Mr. HarveyTo ask the Secretary of State for Transport what assessment he has made of pollution caused by diesel engines relative to other forms of fuel used in transportation.
§ Mr. KeyI refer the hon. Member to the answer my hon. Friend the Minister of State for Public Transport gave to the hon. Member for Dartford (Mr. Dunn) on 21 October 1993 at column298 and the answer that I gave to the hon. Member for Aylesbury (Mr. Lidington) on 21 March at column 9.