Our ocean, the planet's largest ecosystem, is endangered by overfishing. What's the WTO got to do with it, you may ask. By prohibiting harmful fisheries subsidies that contribute to overcapacity and overfishing, WTO members agreed to play their role in the sustainable use of marine resources. Listen to Ambassador Santiago Wills of Colombia, the chair of the fisheries subsidies negotiations at the WTO and to Sainabou Taal, legal expert at the WTO Secretariat, explaining the importance of the Agreement on Fisheries Subsidies that was concluded at MC12.