People Germany Gerold Janssen peoplepill id: gerold-janssenGJ 3 views today 3 views this weekGerman environmentalistGerold JanssenBiographyListsAlso ViewedListsGerold Janssen is in following listsBy field of workNotable German activistsGender:Male, Born in:Years 1900 to 1929By work and/or countryNotable German EnvironmentalistsGender:Male, Born in:Years 1900 to 1929From our partnersSponsoredGerold Janssen