driven more by speculation than actual shortage, was arguably the biggest driver of the Arab Spring.

Looking further out, various entities (often sovereign) are buying up and developing agricultural land in order to secure future food supplies. This raises interesting ethical questions (the former users are generally expropriated in various ways) but will undoubtedly produce more food per hectare. Quantitatively, will this have a visible impact on world food supply? Dunno.

_{It is rightly acknowledged that people of faith have no monopoly of virtue - Queen Elizabeth II}