RT null T1 Discussion on production data A2 Poleshchuk, Ekaterina K1 plastic K1 life cycle K1 statistics YR 2025 FD 2025-01 LK https://wedocs.unep.org/handle/20.500.11822/47074 UL https://wedocs.unep.org/handle/20.500.11822/47074 DS UN Environment Document Repository RD Sep 20, 2026