What kinds of seafood should I eat?
Wild fish often have a relatively small climate footprint, with the main source of emissions being the fuel burned by fishing boats. One recent analysis found that a number of popular wild fish—anchovies, sardines, herring, pollock, cod, haddock—have, on average, a lower carbon footprint than chicken or pork.
There is a huge caveat to all wild seafood, though: Most fisheries are being fished at their maximum sustainable level, while others are being overexploited. So there’s not a lot of room for everyone in the world to increase wild fish consumption.