Experts are threatening once again with Malthusian catastrophe. Malthus was wrong when he first predicted that population growth will outpace agricultural production meaning there won't be enough food for everybody, because he did not consider new agricultural technology. In many places agriculture is still rudimentary, so there is more room for improvement there and with genetically modified food, so he might be proven wrong once again.
The reasons for the global food crisis are well known, and so are some measures governments can take. China realized this potential problem many years ago and ruled the controversial one-child policy to save the nation from starvation. Population growth in Western world is declining naturally, while developing and poor countries are adding 100 million people every year to the world population. And these are the people to suffer the most from increased food prices.
Westerners could eat less meat and use grains for food rather than fuel, but why are people giving birth to children whom they cannot feed in the first place? Because of religion and because they want to outnumber the others at any cost. They figure that by expanding their problem, it will become everybody's problem.
There, I've said what many are afraid to admit.