They're not making any more land and what we do use is being exhausted by intensive farming globally. There will come a point where we will need to better use the marginal lands and uplands if we're to eat.
Most of us who take an interest in food and agriculture have been aware that much of the food we produce and buy is just wasted. But it takes a celebrity chef and a TV programme to get everyone talking.
The EU voted on the 13th October to reject a compromise that allowed individual states to decide if they would allow the import of Genetically Modified Organisms for use in food and animal feed and the growing of GM Crops.