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(John Harrington/AP/Energy Star)
The U.S. government reports that commercial buildings and manufacturing plants account for nearly half of all U.S. energy consumption, in addition to nearly half of all greenhouse gas emissions. To help organizations improve their energy usage figures (and bottom lines), the Energy Star building certification system was developed in 1999, to identify buildings that meet strict performance standards and use less energy than comparable structures.
These are the 10 U.S. metropolitan areas that had the most Energy Star-certified buildings in 2010.
Next: 10. Dallas-Fort Worth