"Dramatic erosion and sinking land along the southeastern coast of Louisiana could lead to “the largest forced migration for environmental reasons in the history of the country,” a new report says."
Not rising sea levels.
I believe that is rising sea levels. The sea is not a static thing with a constant level as seen from land. The local level rises and falls with weather conditions and tides. As the general level rises, you would expect land close to the shore to wash away. Like when you build a sand castle on the beach and then the tide comes in and washes it into the sea.
IIRC, the sinking of Louisiana is more related to the channelization of the Mississippi. Without the sediment formerly delivered by yearly floods from the Misssissippi, the land is eroding away.
Well if you believe it...and with having the science of sand castles behind you, there's not much I can say.