At the rim: Mods to nanotubes help filter salt from seawater
(PHYSorg.com Nanotechnology)

As the global population continues to climb, the demand for drinkable freshwater is likewise rising. One potential solution to the shortages now threatening one-third of the world`s people involves removing salt from seawater and saline aquifers, which collectively represent 98 percent of humanity`s water supply.