BusinessGreen: Walmart has this week kicked off a new phase in its global sustainability efforts, announcing targets to drastically increase its use of renewable energy and improve energy efficiency across its stores and offices.
Speaking at the company's latest Global Sustainability Milestone meeting, Walmart's president and chief executive, Mike Duke, said that by the end of 2020 the company would generate or purchase seven billion kWh of renewable energy each year, marking a 600 per cent increase on 2010...