Cradle-to-farm gate analysis of milk carbon footprint: a descriptive review
2012
Giacomo Pirlo
Twenty-four life cycle assessment studies which estimated the carbon footprint of milk production in countries with modern dairy farming were examined. It proved difficult to compare the studies because of the strong discrepancies between them. The aim of this review was to examine the characteristics of LCA studies on milk production in order to understand how the variability of results can be explained. The main reason is the different methodologies adopted. However, other variables were considered: production system, stocking rate, milk productivity, mitigation strategies. Life Cycle Assessment is a promising tool for benchmarking carbon footprint among different countries or production systems. This approach could also be used as a mitigation indicator in the enforcement of political decision. Two major factors are needed for a practical application: i) a widely accepted methodology and ii) direct measurements of greenhouse gases in specific contests.
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