$15 Billion Floodwalls Are Sinking. Satellite Maps Show New Orleans’ Silent Collapse New satellite data shows parts of New Orleans are sinking fast, including floodwalls meant to protect the city from storms.

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Louisiana's levee system is a complex network of earthen embankments, floodwalls, and pumping stations designed to protect the state, particularly the New Orleans area, from flooding caused by rivers and storm surges. #louisiana #neworleans #flood #floodwalls #fyp #naturaldisasters #storms #levees