Watching your environmental impact is almost as important as watching your liver impact. To that end, Greenopia has rated “15 of the largest breweries in the world.” Guinness, Heineken, Coors, Sam Adams and Tecate all got the lowest possible rating, while Fat Tire’s maker, New Belgium, took home four out of four green leaves (adorable). Remember to consume environmentally friendly beer responsibly.

Find the full ratings here, and a more detailed analysis here.

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