Few consumers feel a stir of conscience about global warming when they drink a glass of milk, eat chocolate, or chew a lamb chop. Yet greenhouse gas emissions from livestock exceed those generated by transport.
Concern over the contribution of livestock to global warming was crystallised in 2006 by a report from the United Nations Food and Agriculture Organisation, Livestock’s Long Shadow: Environmental Issues and Options, which concluded that livestock generate 14-18 per cent of greenhouse gases.
