1. Beukes PC, Gregorini P, Romera AJ, Levy G, Waghorn GC (2010) Improving production efficiency as a strategy to mitigate greenhouse gas emissions on pastoral dairy farms in New Zealand. Agric Ecosyst Environ 136(3–4):358–365
2. BSI (2011) PAS 2050:2011—specification for the assessment of life cycle greenhouse gas emissions of goods and services. British Standards Institute, London
3. Carbon Trust (2013) Carbon-footprinting software—footprint expert. The Carbon Trust, Dorset House, Stamford Street, London. http://www.carbontrust.com/software
4. Casey JW, Holden NM (2005) The relationship between greenhouse gas emissions and the intensity of milk production in Ireland. J Environ Qual 34(2):429–436
5. CSO (2013) Agriculture and fishing statistical products. Central Statistics Office, Skehard Road, Cork, Ireland. Accessed December 12, 2012. http://www.cso.ie/px/pxeirestat/statire/SelectTable/Omrade0.asp?Planguage=0