“Sponge cities” use innovative landscape and drainage designs to reduce and slow down runoff, while allowing certain parts of the city to flood safely during extreme weather. Here’s Franco:
I’m a water resources engineer who studies and designs strategies for sustainably managing urban stormwater. In response to recent flooding episodes, some U.S. cities are beginning to take steps toward incorporation of sponge city concepts into their stormwater management plans, but most of these projects are still pilots. If this concept is to evolve into the new standard for urban design, city officials and developers will need to find ways to scale up and accelerate this work.