BBC: The United Nations Food and Agriculture Organisation (UNFAO) is warning that the soaring cost of food is threatening millions of people in developing countries. Food prices are now growing at the fastest rate since the 1980s, pushing inflation globally. In the poorest countries, farmers have been hit hard by the droughts and floods linked to climate change, a rising oil price and a growing demand for biofuels. The UNFAO is calling for urgent action to provide small …