Climate change and sea level rise pose an acute challenge for cities with combined sewer systems

Older coastal cities, like Philadelphia, New York and Boston are at risk of being inundated by untreated sewage during floods. Due in part to the design of their combined sewer systems and in part due to sea level rise, these cities could be facing a growing public health crisis as climate change also drives more extreme precipitation, according to researchers at Drexel University who study urban stormwater management.