National Sierra Club » Delta Chapter Sierra Club » Conservation » Louisiana's disappearing coast

Since the 1930's, Louisiana has lost 1,900 square miles of coastline and continues to lose land at a rate of 25 to 35 square miles per year. At this rate, Louisiana loses the equivalent of one football field every 38 minutes

Why is this happening?

Why is the coast so important?

What legislation exists to help?

What will happen if nothing is done?


Sources: Louisiana Department of Natural Resources, America's Wetland, Coalition to Restore Coastal Louisiana, Louisiana Coastal Area websites, The Scientific American.

For more information contact the Sierra Club at 225-925-8650.

  1. Penland, Dr. Shea. "The Mississippi River: Barrier Island Formation, Delta Building, and Coastal Land Loss." University of New Orleans.
  2. "The Coastal Crisis and Louisiana's Response" WaterMarks. September 2002, no 21
  3. Ibid.
  4. Fishetti, Mark. "Drowning New Orleans." The Scientific American, Oct 2001.
  5. Louisiana Department of Natural Resources
  6. United State Geological Survey (USGS)
  7. America's Wetland.

This page was researched and compiled by Mara Cohen.

Coastal erosion fact sheet:


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The Delta Chapter is 3,000 of your neighbors supporting the work of the Sierra Club in Louisiana. We advance the cause of protecting Louisiana's environment in a variety of ways, including lobbying the state legislature in Baton Rouge, sponsoring a Mercury Public Education Campaign, raising public awareness about climate change, and working to keep the Atchafalaya Basin, America's greatest river swamp, wet and wild. In addition, we encourage our members to get outside and enjoy our beautiful planet.

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