As part of a $133 million renovation of a federal building in Portland, the Government Services Administration plans to add 200-foot high "vegetated fins" that will carpet the building with plants and - hopefully - energy savings.
Feb 1, 2010 New York Times
Old buildings could be to blame for much of a city's energy waste. That's the case in New York, where officials are putting together a plan to retrofit older buildings to be less wasteful.
May 14, 2009 Grist
<p>Buildings are being renovated all over downtown Washington D.C., and as they rise so does the city's tax revenue.</p>
Mar 19, 2008 The Washington Post