No mention of the cause: Diverting the Mississippi River. In the 20's / 30's The Army Core of Engineers built a series of levees to redirect the Mississippi to flow east of its natural course. Before then, the river would seasonally shift back and forth (think of the end of a garden house spraying left and right).

It naturally wanted to flow into the Atchafalaya Basin, instead all the silt and sand that would've gone into building the wetlands is being diverted and dumped directly into Gulf.

Look at a map sometime and you can clearly see it, the "toe" of Louisiana (south of New Orleans) is growing out into the gulf, this is the trillions of tons of silt and sand. Meanwhile the "heel" is shrinking, as the Gulf slowly erodes it.

Note: This is not an anti ACoE diatribe. Its just that anytime this story gets national coverage they fail to mention the cause, which is locally well known and well understood.