§ Mr. Kelleyasked the Secretary of State for the Environment if he will conduct an urgent study, on the basis of cost benefit analysis, of the use of colliery shale in place of surface extracted minerals in the construction of sections of the M18 and the M180.
§ Mr. MarksYes, my Department is already in contact with South Yorkshire County Council and the National Coal Board on this matter, but there are difficulties in putting a proper valuation on the environmental issues involved.