Developing biofuels worldwide to address climate change has been a dominant factor in driving up food prices, as less agricultural land is devoted to food, von Braun said.

• 据国际粮食政策研究所主题为“当前世界粮食形势：粮价上涨新的驱动力与必要措施”的报告中述，由于气候变化预期会造成全球粮食减产，这种情况对发展中国家的影响更加严重。