Attention, Wal-Mart Shoppers
It’s opening day at Wal-Mart’s new Providence store, and Steven P. Hamburg, Brown’s Ittleson Associate Professor of Environmental Studies, has his head inside a frozen-food case. He’s examining the strips of LED lights that illuminate the chicken tenders. When his head emerges he is grinning. “These aren’t mine, but that’s a cutting-edge technology,” he raves...