CDP announced today that29 major publicly traded companies based in or operating in the U.S. disclosed an internal price on carbon pollution to CDP (formerly known as the Carbon Disclosure Project) in 2013, detailing both the risk and potential business opportunity for early action by their companies. Prices range from $6-60 dollars, and exist at companies spanning all sectors of the economy, including energy, utilities, airlines, technology and the financial industry. Twenty-seven of the companies are listed in the S&P 500, while the other two (BP and Royal Dutch Shell) are foreign-based.