There will be a screening and panel discussion Thursday March 20 6:30-8:00 pm at City CoHO Philly Nexus, 2401 Walnut Street, about what you can do to promote the green storm water infrastructure movement in Philadelphia.  All are invited to a screening of Green City Clean Waters. Green City Clean Waters is a documentary examining Philadelphia’s plan to transform the city into an oasis of green roof, treescapes, rain gardens, and porous pavements to make the city more livable and prettier with higher property values and better community health.