A Primer On 'Green'
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What makes a building green?
Here are a few requirements: sidewalks to encourage walking; low-flow shower heads, toilets and faucets; energy-efficient appliances; and nontoxic paints and sealants.
Does it cost more?
Yes. The extra cost of construction ranges from 2 to 4 percent, proponents say. Opponents say it can cost 11 percent more.
How many D.C. buildings are green?
Six buildings meet the standards: National Geographic Society headquarters, Environmental Defense Fund, U.S. Green Building Council, Nusta Spa, National Association of Realtors and Herman Miller National Design Center.


