Pharmaceutical giant GlaxoSmithKline, Del Monte Foods and MGM Resorts are among some 25 companies that have joined an Ecodesk campaign to improve supply chain efficiency and transparency, and make it easier for businesses to measure so-called Scope 3 emissions.

U.S. distributors and freight haulers have held down diesel consumption even as their business recovers from recession by making thousands of small changes to their operations. Improved driver training, restrictions on idling and careful route planning to reduce deadheads are all reducing consumption of expensive diesel while helping companies promote their green credentials.