On the bbc news site: an article by a Stephen Mulvey: "A storm brews over food, water and power." simply some predictions by UK Chief Scientist Beddington for/by 2030: 1. Food demand up 50% 2 Water demand up 30% 3. energy demand up 50% Major factors are: population growth, beter economies for some nations, "large amount of water swallowed up by intensive farming" Another article talks about parts of California having dust bowl conditions, and the competition for river water between fishing and ag use. "Are dry harvests the future in California"
this article also talks of increasing food prices being the result of the fundamentals coming by 2030 and its social effects. I dont see how governments can keep food prices down unless massive subsidy is given. I am thinking higher commodity prices will drive the ability to produce and impove things like irrigation and water conservation. This will have to be offsett by increase aid to have not peoples. It would appear that more investment in food and water infrastructure is going to be needed and will likely be driven by higher prices or funded by the governments.