Sten Olof Håkan Johansson (born 31 July 1937) is a Swedish politician, who was the leader of the Swedish Centre Party from 1987 to 1998 and Minister for the Environment from 1991 to 1994. Olof Johansson was born in Ljungby, Kalmar County. He studied at the Stockholm School of Economics, and was the leader of the Centre Party youth organisation from 1969 to 1971. In 1971 he was elected a Member of the Swedish Parliament, a position he held until 1976, and again 1978–1979 and 1982–1998. He held cabinet posts in the centre-right governments 1976–1978 and 1979–1982.
https://en.wikipedia.org/wiki/Olof_Johansson