Similar title to Hordijk, L. & Amann, M. ORCID: https://orcid.org/0000-0002-1963-0972 (2007). How Science and Policy Combined to Combat Air Pollution Problems. IIASA Research Report (Reprint). IIASA, Laxenburg, Austria: RP-07-002. Reprinted from Environmental Policy and Law, 37(4):336-340 [2007].