PHILADELPHIA, PA MAKES TOP 10 LIST OF U.S. GREEN ROOF CITIES - PDF
Nearly 47,000 new square-feet of green roofs installed in 2007 places Philly at No. 8 on annual list joining Chicago, Wilmington, DE, Brooklyn and Baltimore, MD. HTML April 21, 2008
PECO Opens First Green Roof Installed on Existing Building in Pennsylvania by Cathy Engel (PECO) Copyright 2009 Business Wire. Jan 15, 2009
Peco’s Green Roof at 23rd and Market Streets. Making the Sky a Little Greener by Jane Caroll - PDF Green Scene March/April 2009
Did you know Bryn Mawr has 2 Buildings with Green Roofs? Next time you go to Guild or Carpenter Library take a look - hint: ground level.