Saltwater-loving plants could open up half a million square miles 
of previously unusable territory for energy crops, helping settle 
the heated food-versus-fuel debate, which nearly derailed biofuel 
progress last year.

By increasing the world's irrigated acreage by 50 percent, 
saltwater crops could provide a no-guilt source of biomass for alt 
fuel makers and tone down the rhetoric of U.N. officials worried 
about food prices

http://blog.wired.com/wiredscience/2008/12/saltwatercrops.html

~Crystal D. Hartman