The CDP represents 551 institutional investors with $71 trillion in assets. The Carbon Performance Leadership Index is composed of 11 companies from the Standard & Poor's (S&P) 500 Index while the Carbon Disclosure Leadership Index consists of 55 companies from the S&P 500 Index.

"At Alcoa, we take a long-term approach to sustainability and that includes innovative products that contribute to a more sustainable world and a relentless focus on reducing our carbon footprint," said Kevin Anton, Alcoa's Chief Sustainability Officer. "We are very proud to have been recognized for those efforts by the Carbon Disclosure Project."

The Carbon Performance Leadership Index highlights those companies within the S&P 500 Index that have demonstrated a strong commitment to strategy, governance, stakeholder communications and emissions reductions in their CDP responses.

The Carbon Disclosure Leadership Index is a key component of CDP's annual S&P 500 report, and highlights the constituent companies within the S&P 500 Index that have displayed the most professional approach to corporate governance regarding climate change information disclosure practices.

The S&P 500 report including names of companies featured in the indexes and the methodology used can be found at www.cdproject.net.

Alcoa is the world's leading producer of primary and fabricated aluminum, as well as the world's largest miner of bauxite and refiner of alumina. More information can be found at www.alcoa.com.

At GLOBE 2012,taking place March 14-16, 2012, Experts from government and the private sector will address the challenges of implementig a Corporate Sustainability Agenda.  Kevin Anton, Chief Sustainability Officer, Alcoa, is among the leading sustainability executives confirmed as speakers in these sessions. Get More information on GLOBE 2012 here