How Green Are Your Pallets?

For years the debate has raged in the pallet industry: Which is better, wood or plastic? As recently as five years ago, the answer could be boiled down to which was more cost-effective for a particular company's operations. But then Wal-Mart came out with a scorecard that rated its suppliers on the sustainability of their packaging, and suddenly it seemed that the question everyone was asking was: Which is greener, plastic or wood? It's an easy question to ask, but a hard one to answer.