Career
He also wrote a book in 1972, Het Milieuboekje (The Environment Booklet), which was about environmental issues of the time.
He also wrote a book in 1972, Het Milieuboekje (The Environment Booklet), which was about environmental issues of the time.
Representing the Pacifist Socialist Party, he was a member of the House of Representatives from 1967 until 1971 and from 1972 until 1978, the Senate from 1983 until 1984, and the European Parliament from 1984 until 1989.