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 3. Monsanto Next Previous Nigel Treblin / Getty Images Industry Sector: Materials NEWSWEEK Green Score: 22.8% Environmental Impact: 8.9% Environmental Management: 28.7% Transparency & Disclosure: 59.1% 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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