Louisiana’s cultural hotspot could be surrounded by Gulf of Mexico before end of this century, authors say

The process of relocating people from New Orleans should start immediately as the city has reached a “point of no return” that will see it surrounded by the ocean within decades due to the climate crisis, a stark new study has concluded.

Ongoing sea level rise and the rampant erosion of wetlands in southern Louisiana will swallow up the New Orleans area within a few generations, with the new paper estimating the city “may well be surrounded by the Gulf of Mexico before the end of this century”.

Rising sea levels and ecological damage caused by heavy use of flood defence system force city authorities to consider next move

The Arsenale, the colossal shipyard that was the engine of the Venetian Republic’s domination for seven centuries, remains the nucleus of the city’s control over the water. Its northern section is made up of cavernous brick warehouses called capannoni, which in the 16th century could produce a warship a day through a rigorously ordered assembly line.

Now, one of them houses the operations centre of the Mose, the sprawling flood defence system that protects the city.