There was a piece on the news last night about the rising cost of food in Britain, with part of the reason being that as China becomes wealthier the shopping habits of its 1 billion inhabitants becomes more luxurious, creating big demand for things like dairy products and fruit.

I've also read this morning that corn crops are at their lowest levels since records began due to the rise in biofuel production with US maize inventories at just 40 days, half the traditional average.

Will there be food shortages in the next decade?