As a follow-up to The Green Edge, NRDC engaged with interested representatives of the commercial real estate sector to explore how property owners and developers think about GSI and conducted a workshop to develop and prioritize recommendations for implementing GSI at commercial development sites. GSI includes green roofs, rain gardens, cisterns, and other mechanisms that mimic natural hydrologic functions or that otherwise capture runoff on-site for productive use.  Our Director of Corporate Responsibility, Eugenia Gregorio, was a participant in the workshop that resulted in this report and guidance being published by NRDC.