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Posted at 11:53 AM ET, 04/28/2011

How green is your government? Put your local eco-smarts to the test.

Alexandria’s James K. Polk Elementary has installed a vegetative roof (above), renewable energy heating and cooling system with on-site geothermal wells, a fresh-air intake system and solar panels. (By Dayna Smith/The Washington Post)
Can you guess how much D.C. shoppers spent on paper and plastic bags in 2010? Any idea how long it could take Arlington to reduce greenhouse gases by 70 percent? And are rain gardens really any better than traditional flower gardens?

Find the answers to these questions and test your knowledge of local eco-friendliness by taking the quiz below.

See Christy Goodman’s article in Thursday’s Local Living section for more on the local green building movement.

Then, tune in for a live chat Thursday at 11 a.m with Stuart Freudberg, director of environmental programs at the Metropolitan Washington Council of Governments, an association of 21 local governments in the D.C. region. At COG, he directs a staff of engineers, scientists, planners and support staff that work on a variety of environmental issues, including energy planning, climate change, water resources, air quality and solid waste.Submit your questions now.

By , and James Buck  |  11:53 AM ET, 04/28/2011

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