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Letter

Nature Geoscience 2, 488–491 (1 July 2009) | doi:10.1038/ngeo553

Drowning of the Mississippi Delta due to insufficient sediment supply and global sea-level|[nbsp]|rise

Michael D. Blum & Harry H. Roberts

Over the past few centuries, 25|[percnt]| of the deltaic wetlands associated with the Mississippi Delta have been lost to the ocean. Plans to protect and restore the coast call for diversions of the Mississippi River, and its associated sediment, to sustain and build new land.