Which seafood causes the least damage to the planet? It's complicated.

salmon

Which seafood causes the least damage to the planet? It’s complicated. “We looked at five environmental pressures for aquatic foods: greenhouse gas emissions, nitrogen runoff, phosphorus runoff, freshwater use, and agricultural land use,” says Jessica Gephart, assistant professor of environmental science at American University. Gephart and her colleagues examined data from 1,690 farms and 1,000 fishery records worldwide.5