Science Market Update

       A common problem in many urban areas, such as New York City, is the overflow of the city's sewer systems due to storm water runoff. Compared to rural areas, where most of the rainwater can easily percolate raw and uncovered earth to return to groundwater aquifers, cities often encounter the issue of flooding and excess runoff due to an enormous amount of paved areas, leaving little room for the absorption of rain and other runoffs into the ground. This flooding is normally controlled by storm drains and sewage systems.