It’s true that the Marine Stewardship Council has certified as sustainable a number of bottom trawl fisheries. In fact, there are more fisheries in the programme that use bottom trawls than any other gear type. However, no coastal bottom trawl fisheries in developing nations have been certified, and the MSC doesn’t consider the socio-economic and climate impacts of a fishery as part of the certification process. Sustainability, for them, is limited to environmental aspects only. But because of their cumulative impact on climate, environment and people, bottom trawl fisheries are a special case.