‘Point of no return’: New Orleans relocation must start now due to sea level, study finds

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- New Orleans – home to about 360,000 residents, could be encircled by the Gulf of Mexico before 2100 as sea level rises 3‑7 m.
- Louisiana – expected to lose three‑quarters of its remaining coastal wetlands, pushing the shoreline inland up to 100 km.
- Tulane University – climate‑adaptation expert Jesse Keenan, a co‑author, says even halted climate change cannot keep the city afloat.
- Nature Sustainability – published the perspective paper labeling New Orleans the world’s most physically vulnerable coastal zone and urging immediate relocation planning.
- Baton Rouge – identified as another major city that may be stranded as the shoreline migrates inland.
Why it matters: Louisiana’s 360,000 residents risk losing homes as billions spent on levees become futile, while state officials must allocate funds for relocation before the 2100 shoreline shift, sparking massive displacement and economic upheaval.




