RT null T1 Worked Examples – Fossil Fuels A1 United Nations Environment Programme, K1 manual K1 fossil fuel YR 2022 FD 2022-09 LK https://wedocs.unep.org/handle/20.500.11822/45251 UL https://wedocs.unep.org/handle/20.500.11822/45251 DS UN Environment Document Repository RD Sep 16, 2026