Seeking simple explanations for the Arab spring uprisings that have swept through Tunisia, Egypt and now Libya, is clearly foolish amidst entangled issues of social injustice, poverty, unemployment and water stress. But asking "why precisely now?" is less daft, and a provocative new study proposes an answer: soaring food prices.
Furthermore, it suggests there is a specific food price level above which riots and unrest become far more likely. That figure is 210 on the UN FAO's price index: the index is currently at 234, due to the most recent spike in prices which started in the middle of 2010.
Lastly, the researchers argue that current underlying food price trends - excluding the spikes - mean the index will be permanently over the 210 threshold within a year or two. The paper concludes: "The current [food price] problem transcends the specific national political crises to represent a global concern about vulnerable populations and social order." Big trouble, in other words.
Now, those are some pretty big statements and I should state right now that this research, by a team at the New England Complex Systems Institute, has not yet been peer reviewed. It has been published because, Yaneer Bar-Yam, NECSI president, told me, the work is relevant now but peer review is slow.
The first part of the research is straightforward enough: plotting riots identified as over food against the food price index. The correlation is striking, but is it evidence of causation?
This article is by Damian Carrington. To continue reading: