“The U.S. Department of Energy expects wind power to supply at least five percent of the nation's electricity by 2020.”

More united states facts

In 1978, only eight percent of U.S. households had microwave ovens. As of 2006 over 80 percent have them.

The size of a typical American home has increased from 1100 to 1800 square feet over the past ten years.

Ninety-nine percent of the natural gas used in the United States comes from North America.