BBC: While meat is all too abundant in the rich North, it is very often a life-saving source of protein in the developing South, says Carlos Sere. In this week’s Green Room, he says backing a worldwide curb on meat consumption is likely to do more harm than good. Daisy the cow, the emblem of healthy wholesome living, is under attack in rich countries. She is deemed to be destroying the environment by emitting tonnes of greenhouse gases and contributing to an upsurge of obesity and …