He was also a spokesman on the environment for the government of Edward Heath from 1970 to 1974, and on transport, the environment, and the arts for the government of Margaret Thatcher from 1979 to 1980.
Außerdem war er 1970 to 1974 Sprecher zum Thema Umwelt der Regierung von Edward Heath und 1979–1980 Sprecher zu den Themen Umwelt, Transport und Kunst der Regierung von Margaret Thatcher.