"In its second canned tuna ranking, Greenpeace USA found that a number of U.S. retailers have made significant progress toward offering consumers more sustainable and ethical products.

...Poor working conditions are systemic in the tuna industry, and in the worst cases, human rights violations and forced labor occur. Greenpeace’s Tuna Guide this year includes an increased focus on the treatment of workers in the rankings. The International Labour Organisation last month slammed the Thai Government for failing to address forced labor, human trafficking and murder in the fishing industry.

...Retailers including Whole Foods, Hy-Vee, Wegmans, Giant Eagle, Albertsons, ALDI, Ahold Delhaize and Kroger have moved in the right direction on their own canned tuna. In this year’s ranking, Whole Foods joined Wild Planet, American Tuna and Ocean Naturals in the green category, identified as the best canned tuna choices for American consumers. Whole Foods recently made a commitment to sell only sustainable canned tuna nationwide by early 2018, setting the bar for all other U.S. retailers. Wild Planet and American Tuna tied for the top score in the ranking..." [also refers to Target, Costco, Supervalue, Trader Joe’s, Woolworths]