Why New Orleans is vulnerable to flooding: It’s sinking

(CNN)New Orleans was built above sea level, but over time, it’s been sinking. Settlers who got the best land were able to build only about 10 feet above sea level. Even from the beginning, the city was fighting an uphill battle as it expanded. New Orleans is mostly flat, and areas around the French Quarter are just a little lower. But in this situation, every foot counts. “Even during its very beginnings, New Orleans’ residents understood the value of land elevated above the flood-prone land they had chosen to call home,” the US Federal Emergency Management Agency says in its History of Building Elevation in New Orleans. 2. It was built on loose soil As the city grew, architects chose …