Ye gads. The Guardian is reporting Ban Ki-moon as saying that world food production needs to rise by 50% by 2030. Perhaps we could magic up a source of cheap energy, de-salinate seawater and irrigate the desert? Or perhaps increases in production to feed the hungry we already have could go hand-in-hand with a crash programme of policies to reduce our population and hence our ever greater demands on an over stretched biosphere? Just a thought. Oh, hang on, The Guardian's article is topped by a photo of Ban Ki-moon with the Pope. Rational and workable solutions to overpopulation will just have to wait. Have more kids, we've got the loaves and fishes on standby.