An interesting, though long, article
on global food shortage, and consequently, higher food prices. Why the food shortage? One reason is that countries like India and China are eating more meat, which naturally requires somewhat more grain to produce. Another reason is that crops traditionally grown for food like maize are now being grown for bio-fuels.
In theory, the increase in food prices will benefit places that export more food than they import - this includes many poor countries as well as middle-America. However, this is only in principle, and the lower rungs of such places will still suffer. It would appear that the halcyon days of cheap food are behind us.