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There are millions of farms and fishing vessels globally, each using a unique set of practices to cultivate or harvest their products. For any commodity, there are many thousands of different production systems. The relative GHG emissions of producing the same product may differ drastically depending on how and where it is grown. To fully understand how to mitigate emissions and on which producers to focus mitigation efforts, we need a better grasp of the variations and gaps in data. Emissions from the tuna value chain arise from four main processes: fishing, processing, transport, storage, and packaging.
