Cities and Urbanization

New York's rooftop farms provide fresh local produce - and help stop a sewage problem

South view of New York City from the newly renovated "Top of the Rock" observation deck at Rockefeller Center in New York October 26, 2005. The deck, which has been closed to the public since 1986, features three levels with panoramic views in all directions. The deck will be open to the public starting November 1, 2005. REUTERS/Seth Wenig - RP2DSFIJMRAA

New York has spent $45 billion on wastewater treatment since the 1980s. Image: REUTERS/Seth Wenig

Douglas Broom
Senior Writer, Forum Agenda
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Sewer systems around New York can become overwhelmed during heavy rainfall. Image: Open Sewer Atlas NYC
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