"With a fast burst of sea level rise, New Orleans’s outer defenses face a major test".
"Louisiana armed itself against the seas in the years after Hurricane Katrina, working to rebuild a shrinking coastline while factoring in the potential for dire climate change.
But since 2010, the U.S. Gulf Coast has seen a sudden burst of rapid sea level rise, with rates that scientists didn’t expect to see until late this century. At its center lie the wetlands that make up the first line of defense for New Orleans, buffering the levees and barriers behind them. The change has put the city and its nearby coastal communities at greater risk from storms.
At Shell Beach, just two miles from commercial fisherman Charles Robin’s small boat dock, the sea has risen about seven inches since 2009, according to data from the National Oceanic and Atmospheric Administration."