Blue and Green: Farming leaders have warned that by 2040 the UK will need to import almost half of its food to meet demand as the population rises. A report from the National Farmers Union (NFU) warns of serious implications for the economy and food security if the country does not improve productivity. The union predicts that by 2040 there will be an extra 13 million people living in the UK, putting pressure on food resources. If farming continues at current rates, the UK will only produce enough food to meet...