“…food miles is a measure of how far food travels – from paddock to plate – and is an indication of how environmentally-friendly it is. Food freight – especially by air and road – consumes fuel and energy, and releases greenhouse pollution, affecting the global climate.”
And, so, according to the Australian Conservation Foundation (ACF) we should support the Tasmanian farmers in their campaign for country-of-origin labeling and buy Australian made, see http://www.acfonline.org.au/asp/pages/document.asp?IdDoc=2443 .
This seems to me like a rather superficial measure of the environmental friendliness of a food.
What about efficiency of land use measured in terms of tonnes per hectare of product? Condition of the soil resource? Quality of water in adjacent rivers and streams?