Target is the latest chain to pledge to phase unsustainable seafood out of its stores. The company has already rid its shelves of orange roughy, farmed salmon, and Chilean sea bass, and plans to switch entirely to sustainable fresh and frozen fish by 2015. You sort of expect this from foodie meccas like Whole Foods, which has also been working to eliminate its unsustainable options. But Target supermarkets supply food for a whole lot of busy, less-wealthy suburban shoppers who might not have the resources -- or inclination -- to find out whether their seafood threatens the environment. And it's …
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