From Geoff Russell, St Morris, South Australia
Susan Johnston says cattle fed on pasture “must have a lower carbon footprint” (Letters, 2 June). In fact, pasture-raised animals emit far more methane than those fed grain, and methane dominates other aspects of their carbon footprint. Weight for weight, it has of carbon dioxide during the 20 years after its release.
Pasture-fed animals as those fed on grain. Beef tens of thousands of kilometres without the transport emissions matching methane in terms of warming.
