The Least Green Companies in America From KeyCorp to Monsanto, the least eco-friendly companies in the U.S. Oct 16, 2011 9:30 PM EDT View AllMore 7. Ameren Next Previous Bill Greenblatt / Newscom Industry Sector: Utilities NEWSWEEK Green Score: 26.3% Environmental Impact: 11.0% Environmental Management: 43.4% Transparency & Disclosure: 17.9% Previous 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next 10
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