Yale Environment 360: In Northeast Philadelphia, along busy Kensington Avenue, sits a small park. What used to be flat ground is now sloping terrain that contains a low-lying area intended to gather and funnel storm water. At the park's southern end is a depression lined with well-arranged plants -- a new landscape carefully engineered to change how water flows through the area.
This is Womrath Park, one of a handful of "green infrastructure' projects Philadelphia has begun -- with many more to come -- aimed at tackling...