The study was based on an online survey of more than 600 global executives, conducted during the fourth quarter of 2007.
It found that while 83% of all companies surveyed claim to factor environmental concerns into their corporate strategy, slightly less than a quarter of U.S. companies have worked to implement "green" supply chains.
By comparison, approximately 38% of European companies and nearly all Japanese companies surveyed have taken steps to ease the environmental impact of their supply chain.
Thirty-six percent of respondents said the greatest barrier toward the implementation of environmentally friendly supply chains is a lack of information, while 11% said cost is a limiting factor.
Also, 71% percent of U.S. companies said they proactively market the environmental friendliness of their products to their customers, compared with the global average of 59%.