When there's nothing left to eat. Would you? could you?

World's farmers turn to raw sewage for irrigation
From Site:
"The future may not smell too rosy – it may lie in sewage. As cities and industries suck up ever more of the world’s scarce water resources, agriculture is destined to rely increasingly on recycling the contents of urban sewers, according to a new international study of “wastewater agriculture”."

"Half of urban fields are irrigated with sewage, suggesting that a tenth of the world’s food is already grown this way . IWMI’s director Colin Chartres warned this week: “This figure is bound to increase as growing cities coincide with escalating food shortages to create a squeeze on agricultural water supply.”Theoretically, irrigating food crops with untreated wastewater is banned in many countries, one reason why there is virtually no research on the practice. But “while it may be theoretically forbidden, it is unofficially tolerated”
[via: http://www.newscientist.com]