Environmental policies must be carefully structured and predictable if they are to enhance rather than undermine competitiveness. On this score the United States falls woefully short. Its climate policy in particular has been adrift during the nearly two decades since the U.S. ratified the 1992 UN Convention on Climate Change. Without a coherent framework for pricing greenhouse gas emissions, American companies have been unable to make rational decisions about investments that carry significant energy implications, such as spending on factories, equipment, and product design. This uncertainty has cast a pall over the entire U.S. economy. It has dampened innovation and put U.S. companies at a serious disadvantage when competing with businesses in countries where clear policies have sharpened the corporate focus on waste and inefficiency and spurred innovation.

A version of this article appeared in the March 2012 issue of Harvard Business Review.