Aon Center earns Energy Star rating from EPA

December 9, 2009 (CHICAGO) The Aon Center is the tallest building to ever earn the Energy Star rating.

The EPA is celebrating a decade of energy efficient commercial buildings.

Since 1999, Energy Star partners have helped prevent nearly 120-million metric tons of carbon dioxide emissions.

This is equal to the annual electricity use of more than 60-million American homes.

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