According to the Monterey Bay Aquarium, Tilapia are environmentally-sound. "In the U.S., most tilapia are farmed in inland recirculating systems that have little impact on the environment. Tilapia thrive on inexpensive vegetable-based foods, making them a good source of eco-friendly protein." No need for my mom to stop buying them frozen from Trader Joe's. [Thanks Robert!]

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