What do the food crises have to do with sustainability?

The main issue is that we are letting consumer-driven markets dry up resources without thought to proper distribution. Capitalism must be tempered by the reality of resource limitations and the winner is creating communities that can sustain themselves with basic human needs of food, shelter, healthcare and education or we are doomed to create crisis. By default this also means caring for the world around us. We can do something about it. The first step is educating ourselves. Next, we learn to decrease our own demand on resources so that everyone can have. Here is a snippit from the article:

"The rapid industrialization of China and India over the past two decades - and the resultant growth of a new middle class fast approaching the size of America's - has driven demand for oil toward the limits of global supply capacity. That has pushed oil prices to levels five times what they were in the mid 1990s, which has also raised pressure on food prices by driving up agricultural costs and by prompting the substitution of biofuel crops for edible ones on scarce farmland. Moreover, those new middle class people are eating a lot better than their parents did - particularly more meat. Producing a single calorie of beef can, by some estimates, require eight or more calories of grain feed, and expanded meat consumption therefore has a multiplier effect on demand for grains. Throw in climate disasters such as the Australian drought and recent rice crop failures, and you have food inflation spiraling so fast that even the U.N. agency created to feed people in emergencies is warning that it lacks the funds to fulfill its mandate. "