RT null T1 Unveiling Plastic Pollution in Oceans - Foresight Brief T2 Déchets marins : lever le voile sur la pollution plastique des océans - Note Perspective A1 United Nations Environment Programme, K1 pollution K1 plastic K1 ocean dumping K1 marine pollution K1 biological diversity K1 health hazard K1 waste management YR 2020 FD 2020-08 LK https://wedocs.unep.org/handle/20.500.11822/33604 UL https://wedocs.unep.org/handle/20.500.11822/33604 NO Marine plastic litter pollution is a global concern that threatens seas and the ocean, biodiversity, human health and economic activities such as tourism, fisheries and marine navigation/transportation. Plastics represent approximately 80% of marine litter and result from both land and sea-based human activities. Combating marine litter requires knowledge of sources, pathways, sinks and impacts, which calls for worldwide harmonized monitoring and assessment programmes to guide measures and assess their effectiveness. DS UN Environment Document Repository RD Sep 17, 2026