Accretion is the process of land forming which result from the deposition of material transported by streams. Accretion occurs primarily when a stream slows or enters a body of water such as at a delta. Accretion may add height and area to low lying land. In Bangladesh there are promising efforts to capture silt by river management which otherwise might flow out to sea.
- "In Silt, Bangladesh Sees Potential Shield Against Sea Level Rise" article by Somini Sengupta in The New York Times March 19, 2009
- "Time to Move the Mississippi, Experts Say" article by Cornelia Dean in The New York Times "Since the Mississippi River was leveed in the 1800's, Louisiana has lost most of its coastline, which is normally replenished by river sediment." September 19, 2006