NEW YORK - January 15, 2008 - Alcoa (NYSE:AA) announced today that it has become a Founding Reporter on The Climate Change Registry, a non-profit organization that measures and publicly reports greenhouse gas emissions (GHG) in a common, accurate and transparent manner consistent across industry sectors and borders. Alcoa is among the first companies to join the organization.

As a Founding Reporter, Alcoa has voluntarily committed to measure, independently verify, and publicly report its GHG emissions on an annual basis utilizing The Climate Registry General Reporting Protocol. The protocol is based on the internationally recognized GHG measurement standards of the World Resources Institute and World Business Council on Sustainability.

"Alcoa has demonstrated exemplary environmental leadership by stepping forward to support The Climate Registry in its preliminary stages. We are deeply grateful for their integral support in helping to address the challenge of climate change," said Gina McCarthy, Chair of The Climate Registry.

Entities that join before May, 2008 are eligible to receive Founding Reporter status.

Alcoa's Commitment to Sustainability

As a company, Alcoa's core Values include a commitment to sustainability. Alcoa had established a target of reducing greenhouse gas emissions by 25% below 1990 levels by 2010. This goal was achieved in 2003, seven years ahead of schedule, and those reductions have been maintained despite continuous growth. As a founding member of USCAP, Alcoa, along with other member companies, continues to call for legislation to reduce U.S. greenhouse gas emissions. Alcoa has also undertaken similar well-structured partnerships in Brazil and Australia, where it a major employer. In addition, Alcoa, as a member of the U.S. Climate Policy Forum organized by Resources for the Future, an energy and environmental think tank, has participated in assessments of U.S. climate policy options from which effective federal policy might be crafted.

In the community, Alcoa Foundation has funded a portfolio of climate change projects totaling more than $8 million and entered into partnership with various groups to inform public policy, build capacity, and increase education, understanding and awareness.

About Alcoa

Alcoa is the world's leading producer and manager of primary aluminum, fabricated aluminum and alumina facilities, and is active in all major aspects of the industry. Alcoa serves the aerospace, automotive, packaging, building and construction, commercial transportation and industrial markets, bringing design, engineering, production and other capabilities of Alcoa's businesses to customers. In addition to aluminum products and components including flat-rolled products, hard alloy extrusions, and forgings, Alcoa also markets Alcoa(R) wheels, fastening systems, precision and investment castings, structures and building systems. The company has 116,000 employees in 44 countries and has been named one of the top most sustainable corporations in the world at the World Economic Forum in Davos, Switzerland. More information can be found at www.alcoa.com

About The Climate Registry

Incorporated March 2007 in Washington, DC, The Climate Registry provides accurate and transparent measurement of GHG emissions and ensures consistency of measurement metrics across industry sectors and borders. The Climate Registry accounting infrastructure supports both voluntary and regulatory programs. For more information please visit, www.theclimateregistry.org

Alcoa Inc.

Alcoa Inc.

Alcoa (NYSE:AA) is the world's leading producer and manager of primary aluminum, fabricated aluminum and alumina facilities, and is active in all major aspects of the industry. Alcoa serves the aerospace, automotive, packaging, building and construction, commercial transportation and industrial markets, bringing design, engineering, production and other capabilities of Alcoa's businesses to customers. In addition to aluminum products and components, Alcoa also markets consumer brands including Reynolds Wrap® foils and plastic wraps, Alcoa® wheels, and Baco® household wraps. Among its other businesses are closures, fastening systems, precision castings, and electrical distribution systems for cars and trucks. The company has 129,000 employees in 44 countries and has been named one of the top most sustainable corporations in the world at the World Economic Forum in Davos, Switzerland. More information can be found at www.alcoa.com

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