Condos produce high levels of energy and contribute heavily to our country's carbon dioxide emissions. According to the U.S. Green Building Council, commercial and residential buildings account for more than 39 percent of the carbon dioxide emissions in the United States each year. Other statistics show that buildings account for almost half of carbon dioxide emissions.

But there are some ways to reduce the carbon footprint of even an old condominium building says Jill Chodorov for The Washington Post.

Officials at Boston House, a 1950s condo building in Northwest Washington on Embassy Row near Dupont Circle, say they feel that the installation of solar power at their building has provided benefits beyond cost savings. “This is ultimately what you want in a building,” said Robert Thomason, treasurer of the Boston House condo association. “We are serious about keeping HOA fees down and getting ahead of the curve for any energy or carbon emission regulations coming up.”

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