Effective policies need to consider interactions at multiple levels, say John Ingram and Tim Benton.

John Ingram

The way individuals and institutions react to environmental and other stresses affects food security at local, national and international levels. This was seen in the food price-spikes in 2007/08 where a combination of droughts affecting food production in some countries, food export restrictions in others, and speculation on world markets exacerbated hunger in many counties for extended periods around the world.
Continue reading Embracing the complexity of food security