RT Report T1 Umweltpolitik Bilanz und Perspektiven A1 United Nations Environment Programme, A1 Germany, K1 environmental policy K1 environmental management K1 pollution K1 air pollution K1 industrial waste K1 chemical K1 motor vehicle emission K1 Clean fuels K1  Energy Efficiency SN 3 3-17-009093-3 YR 1991 FD 1991 LK https://wedocs.unep.org/handle/20.500.11822/31098 UL https://wedocs.unep.org/handle/20.500.11822/31098 DS UN Environment Document Repository RD Sep 17, 2026