Are transgenic crops the answer to the problem, or do they, as Prince Charles has argued, threaten an environmental catastrophe? What’s the evidence on the success or failure of GM to date?
To some it is a powerful technology that could boost food production and prevent famines; to others it is a dangerously untested science that threatens environmental disaster.
This bbc documentary sent Jimmy Doherty – an advocate of sustainable farming – on a personal mission to get at some of the truths on GM. Can genetically modified food save the world?