Dramatic price hikes reflect several factors: adverse weather in key food production areas, rapid increase in demand for meats and dairy products, higher oil prices, draw-downs of food stocks, greater use of food commodities for bio-fuel, and failure to invest in rural infrastructure, research and technology, and other public goods needed to facilitate agricultural growth in developing countries. The skyrocketing cost of food has resulted in more starvation among the poor, reduced purchasing power among the non-poor, and food riots in more than 30 countries.&#160;
&#160;&#160;&#160; 价格大幅上扬反映出几个因素。它们是：主要粮食生产地区气候恶劣、对肉类和奶制品需求快速提高、高油价、粮食库存下降、大量使用粮食商品用于制造生物燃料和未能在农村基础设施、研究和技术以及促进发展中国家农业进步所需要的其他公共条件上予以投入。粮食成本巨幅上升已经在贫穷人口中造成更大的饥荒，降低了非贫穷人口的购买力以及三十多个国家中的因粮食引发的骚乱。