Hamburg - German scientists warn that fertile parts of Vietnam's coastline would be washed away over the next few decades.
But sediment from the Mekong River might create some new land further to the west, according to the EarthTimes online science news source.
Since 2003, staff at the University of Kiel in Germany and other German and Vietnamese scientists have been studying what is happening to silt washed through the Mekong Delta and the Saigon River.
Professor Karl Stattegger of the university's Geoscience Institute said the delta was now carrying the sediment further to the west. Rising sea levels and stronger wave action were washing it out into the Gulf of Thailand.