10/22/2012 08:46 am ET Updated Dec 22, 2012

Workers Need Sustainability, Too

The fact that Apple's supply-chain challenges have not affected iPhone sales is telling. Growing public concern over environmental issues does not yet fully extend to social issues, particularly worker treatment. Likewise, while many companies compete over environmental leadership, social issues are often critically overlooked. This is an important issue to keep in mind when assessing the sustainability commitment of companies in the Green Rankings.

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