Wal-Mart Plans To Launch Sustainability Index, Cut Energy Costs

Wal-Mart said it plans to develop a sustainability index that would measure the environmental impact for the entire life cycle of every product the retailer sells and reduce costs by $1 billion by 2020. Also, the retailer announced its plan to launch a pilot system of the index. Wal-Mart aims to use the index to improve its energy efficiency and ultimately pass on the expected savings to Wal-Mart and Sam's Club customers.