DEFRA has commissioned a number of studies, some of which are ongoing, to assess the environmental impacts of greenhouse gas emissions from several agricultural commodities throughout their lifecycle. This includes assessment of livestock production under intensive livestock systems. The most relevant studies are listed:
Project AC0204—A study of the scope for the application of research in animal genomics and breeding to reduce nitrogen and methane emissions from livestock based food chains - published in April 2008.
Project IS0222—Developing and delivering environmental Life-Cycle Assessment (LCA) of agricultural systems - due to be completed in September 2009.
Project AC0210—Economic and environmental impacts of livestock production in the UK- due to be completed in July 2010.