A UK government-commissioned study into food security has called for urgent action to avert global hunger.
The Foresight Report on Food and Farming Futures says the current system is unsustainable and will fail to end hunger unless radically redesigned.
It is the first study across a range of disciplines deemed to have put such fears on a firm analytical footing.
The report is the culmination of a two-year study, involving 400 experts from 35 countries.
According to the government's chief scientific adviser, Professor Sir John Beddington, the study provides compelling evidence for governments to act now.