Greenpeace US activist Crystal Monica comparing canned tuna on a store shelf.

The U.S. is one of the world's largest consumers of seafood, and the largest market for canned tuna. This means our supermarkets where we buy about half of our seafood are one of the strongest connections to our oceans.

Unfortunately, most of the tuna found on supermarket shelves come from destructive fishing methods that injure and kill other marine animals and exploit and put workers at risk.