Usually it's great to be No. 1, but not when it makes you the year's worst polluter. The Political Economy Research Institute has released its fifth annual Toxic 100 Air Polluters index, and no one wants to be on that list. Watch the following video to hear which companies were 2013's biggest polluters, and what it all means.
Sara Murphy has no position in any stocks mentioned. Follow her on Twitter @SMurphSmiles. The Motley Fool recommends Ford and Precision Castparts and owns shares of Ford and General Electric. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.
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