About: http://webisa.webdatacommons.org/5984413

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In New Orleans and other river deltas, subsidence occurs as organic material in soil decomposes and new sediment, which would sustain ground level, is blocked behind levees.
http://www.w3.org/ns/prov#wasQuotedFrom	whyfiles.org