most of the popular fish we eat – tuna, salmon, cod, trout, herring – were the most climate-friendly types of meat. Fish are not quite as good as plant-based protein sources, but they can still be a fairly low-carbon choice. Most fish perform well on other environmental metrics too. They’re nearly all better than chicken. Be careful, though. There are a few delicacies where you could be hit with a high footprint, as well as a hefty price tag. Seafood such as flounder and lobster can have a very high footprint.
