Article: Video: PNC Unveils Largest Green Wall in North America.

Vertical version of green roof increases energy-efficiency for world's leader in newly constructed LEED-certified buildings

PITTSBURGH, Sept. 22 /PRNewswire-FirstCall/ -- The PNC Financial Services Group, Inc. has unveiled the largest green wall in North America as an innovative way to make its headquarters building more energy-efficient.

To view the Multimedia News Release, go to: http://www.prnewswire.com/mnr/pncgreenwall/40156/

(Photo: http://www.newscom.com/cgi-bin/prnh/20090922/NY79605)

The 2,380 sq. ft., soil-based wall - similar in size to a doubles tennis court - features a variety of regional plants grown into living art on ...

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