Wal-Mart: Measuring Just How Green

The retailing giant launched a potentially groundbreaking initiative to measure suppliers' energy use. How hard will it push for change?

In a move with potentially far-reaching consequences, Wal-Mart Stores (WMT) says it will begin to measure the amount of energy used to manufacture and distribute some of its products, and it will launch a pilot project with certain suppliers to look for new ways to cut their energy use. The effort will begin with suppliers in seven product categories: DVDs, toothpaste, soap, milk, beer, vacuum cleaners, and soda.

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