This seminar titled, Hydrologic Performance of the Green Roof on the Nicholas Pirro Convention Center in Syracuse, NY , will be delivered by Dr. Cliff Davidson. Green roofs can reduce combined sewer overflow, minimize flooding, decrease the intensity of the urban heat island, and provide habitat for urban wildlife, among other benefits. In this talk, we examine the hydrologic performance of a 0.56 hectare extensive green roof on a Convention Center owned by Onondaga County in Syracuse, NY. Results of modeling and measurements show that the roof captures significant amounts of stormwater during all seasons, and allows much of the water to evaporate and transpire to the atmosphere in the days after a storm. A website showing real-time data from the roof will be demonstrated.