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The article calls on the World Trade Organization (WTO) to eliminate harmful fisheries subsidies to curb overfishing, biodiversity degradation and loss, and carbon dioxide emissions. Fisheries subsidies that cause harm include those that lower the cost of fuel and vessel construction, those that provide price support to keep market prices artificially high, and those provided to distant-water fishing fleets.

The magnitude of subsidies provided to the fishing sector by governments worldwide is immense—an estimated $35.4 billion USD per year. The majority of these subsidies may be impeding efforts to sustainably manage fisheries by incentivizing overfishing and overcapacity. Recognizing the threat these subsidies pose, the World Trade Organization has set a goal of reaching an agreement that would end fisheries subsidies that contribute to overcapacity, overfishing, and illegal fishing. However, negotiations have been hampered by uncertainty around the likely effects of reforming these subsidies. Here we present a novel method for translating a bioeconomic model into an interactive online decision support tool that draws upon real-world data on fisheries subsidies and industrial fishing activity so users can directly compare the relative ambition levels of different subsidy reform options. [ABSTRACT FROM AUTHOR]