§ Mrs. Dunwoody
To ask the Secretary of State for the Environment, Transport and the Regions what estimate he has made of the increase in(a) fuel burn and (b) emissions as a result of the increased times taken on scheduled flights to Scotland. 
§ Mrs. Liddell
We have not assessed whether the slight increases in some scheduled journey times reflect delays on the ground or in the air. That information could be obtained only at disproportionate cost. Without it, no estimate of any increase in fuel burn or emissions could be made.