Shifting from corn to perennial crops in making biofuels is essential to save clean water, argues Jeremy Martin.

http://www.nature.com/nature/journal/v474/n7352_supp/full/474S017a.html

With approximately one in eight people, or about 884 million people worldwide, lacking access to safe water supplies, seawater deasalination continues to emerge as the most viable solution to the growing water crisis.