Forget the 2008 food crisis. It is merely a distribution problem. The real tragedy is yet to come. Between nine and ten billion people will inhabit the world in less than 50 years, and they will have to nurture themselves from an increasingly exhausted planet. Global warming will have devastating effects on the soil’s ability to yield, the fight for fresh water will increase, less and less land will remain arable and biodiversity is dwindling at a rapid pace.