+Tibbetts, John, Louisiana's Wetlands: A Lesson in Nature Appreciation Environmental Health Perspectives, v.114, no.1 (January 2006), pp.A40-A43 (Spheres of Influence) (PDF — 2.4M)
"Hurricane Katrina's disastrous flooding of the Gulf Coast confirmed three decades of warnings by scientists. Most of New Orleans is below sea level, and South Louisiana's coastal wetlands, which once helped buffer the city from giant storms, have been disappearing at a spectacularly swift pace. Now some researchers are calling for restoration of wetlands and barrier islands to help protect New Orleans the next time a hurricane strikes."
