Do we need a global treaty to tackle plastics pollution, similar to the one on climate change. Campaigners and a growing number of governments and businesses say we do. Ahead of a United Nations Environment Assembly which could launch talks on a plastics pact, the World Economic Forum heard from a range of experts on why we need a treaty and what it might contain. Speakers: Kristin Hughes, Director, Global Plastic Action Partnership, World Economic Forum; Espen Barth Eide, Minister of climate and environment of Norway and President of the UN Environment Assembly (UNEA); Marco Lambertini, Director-General, WWF International; Rebecca Marmot, Chief Sustainability Officer, Unilever; Luis Vayas Valdivieso,  Vice-Minister, Ministry of Foreign Affairs of Ecuador; Sheila Aggarwal-Khan, Director, Economy Division, United Nations Environment Programme (UNEP); Inés Yábar, Communications Coordinator, Co-Founder, Life Out Of Plastic - L.O.O.P.; Gim Huay Neo, Managing Director, Centre for Nature and Climate, World Economic Forum.