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Greening The Capital City's Rooftops

This high-rise green roof in Washington DC required a large crane to lift the soil and gravel onto three floors. (Photo courtesy of DC Greenworks)

Green roofs are increasing in popularity across the US, especially in cities, where there's not a lot of space for gardens. Sabri Ben Achour explores the trend in Washington, DC, where the city government is promoting the practice for it's environmental benefits:

DC Greenworks

A related article from the New York Times

Producer: Sabri Ben Achour
Release Date: July 27, 2009
Running Time: 2:51

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