• Adler, A.A., Doole, G.J., Romera, A.J., Beukes, P.C., 2013. Cost-effective mitigation of greenhouse gas emissions from different dairy systems in the Waikato region of New Zealand. Journal of Environmental Management 131, 33-43.
• Boadi, D., Benchaar, C., Chiquette, J., Massé, D., 2004. Mitigation strategies to reduce enteric methane emissions from dairy cows: Update review. Canadian Journal of Animal Science 84, 319-335.
• Commonwealth of Australia, 2014. Carbon Credits (Carbon Farming Initiative) Amendment Regulations 2014 (No. 1). Commonweath Government of Australia, Canberra, Australia.
• Doole, G.J., 2014. Least-cost greenhouse gas mitigation on New Zealand dairy farms. Nutrient Cycling in Agroecosystems 98, 235-251.
• Duffy, B., 2010. The analysis of documentary evidence. In: Bell, J. (Ed.), Doing your Research Project: A guide for first-time researchers in education, health and social science. Open University Press, Maidenhead UK, pp. 124-139.
• Dutreuil, M., Wattiaux, M., Hardie, C.A., Cabrera, V.E., 2014. Feeding strategies and manure management for cost-effective mitigation of greenhouse gas emissions from dairy farms in Wisconsin. Journal of Dairy Science 97, 5904-5917.
• Eckard, R.J., Grainger, C., de Klein, C.A.M., 2010. Options for the abatement of methane and nitrous oxide from ruminant production: A review. Livestock Science 130, 47-56.
• FAO (Ed), 2006. Livestock's Long Shadow: Environmental Issues and Options. Food and Agricultural Organization of the United Nations, Rome, Italy.
• FAO, 2010. Greenhouse Gas Emissions from the Dairy Sector: A Life Cycle Assessment. Food and Agricultural Organization of the United Nations, Rome, Italy.
• FAO, 2013a. FAOSTAT Emissions Database. Food and Agricultural Organization of the United Nations.
• FAO, 2013b. FAOSTAT Population data. Food and Agricultural Organization of the United Nations.
• Garnaut, R., 2008. Australia's emissions in a global context. In: Garnaut, R. (Ed.), The Garnaut Climate Change Review. Cambridge University Press, Port Melbourne, Australia, pp. 153-171.
• Gerber, P., Vellinga, T., Opio, C., Steinfeld, H., 2011. Productivity gains and greenhouse gas emissions intensity in dairy systems. Livestock Science 139, 100-108.
• Gerber, P.J., Steinfeld, H., Henderson, B., Mottet, A., Opio, C., Dijkman, J., Falcucci, A., Tempio, G. (Eds.), 2013. Tackling climate change through livestock - A global assessment of emissions and mitigation opportunities. Food and Agriculture Organization of the United Nations, Rome, Italy.
• Government of India, 2013. National Livestock Policy 2013. Government of India, New Delhi.
• Heffernan, C., Salman, M., York, L., 2012. Livestock infectious disease and climate change: a review of selected literature. CAB Reviews 7, 1-26.
• Hristov, A.N., Oh, J., Lee, C., Meinen, R., Montes, F., Ott, T., Firkins, J., Rotz, A., Dell, C., Adesogan, A., Yang, W., Tricarico, J., Kebreab, E., Waghorn, G., Dijkstra, J., Oosting, S. (Eds.), 2013. Mitigation of greenhouse gas emissions in livestock production - A review of technical options for non-CO2 emissions. Food and Agricultural Organization of the United Nations, Rome, Italy.
• IPCC, 2006. Emissions from livestock and manure management. In: Eggleston, H.S., Buendia, L., Miwa, K., Ngara, T., Tanabe, K. (Eds.), 2006 IPCC Guidelines for National Greenhouse Gas Inventories. Prepared by the National Greenhouse Gas Inventories Programme, Intergovernmental Panel on Climate Change, Kamiyamaguchi, Japan, pp. 10.11-10.89.
• Knapp, J.R., Laur, G.L., Vadas, P.A., Weiss, W.P., Tricarico, J.M., 2014. Invited review: Enteric methane in dairy cattle production: Quantifying the opportunities and impact of reducing emissions. Journal of Dairy Science 97, 3231-3261.
• Liberati, A., Altman, D.G., Tetzlaff, J., Mulrow, C., Gøtzsche, P.C., Ioannidis, J.P.A., Clarke, M., Devereaux, P.J., Kleijnen, J., Moher, D., 2009. The PRISMA Statement for Reporting Systematic Reviews and Meta-Analyses of Studies That Evaluate Health Care Interventions: Explanation and Elaboration. PLoS Med 6, e1000100.
• Ministry of Infrastructure and the Environment, 2013. Sixth Netherlands National Communication under the United Nations Framework Convention on Climate Change. Ministry of Infrastructure and the Environment, The Hague, the Netherlands.
• Moher, D., Liberati, A., Tetzlaff, J., Altman, D.G., The, P.G., 2009. Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement. PLoS Med 6, e1000097.
• O’Brien, D., Capper, J.L., Garnsworthy, P.C., Grainger, C., Shalloo, L., 2014. A case study of the carbon footprint of milk from high-performing confinement and grass-based dairy farms. Journal of Dairy Science 97, 1835-1851.
• Oosting, S.J., Udo, H.M.J., Viets, T.C., 2014. Development of livestock production in the tropics: farm and farmers’ perspectives. Animal 8, 1238-1248.
• Scott, J., 1990. A matter of record: Documentary sources in social research. Polity Press, Padstow UK.
• The Danish Government, 2013. Climate Policy Plan: Towards a low carbon society. The Danish Government, Copenhagen, Denmark.
• UNFCCC, 2014a. Glossary of climate change acronyms. United Nations Framework Convention on Climate Change
• UNFCCC, 2014b. List of Annex I Parties to the Convention. United Nations Framework Convention on Climate Change.
• UNFCCC, 2014c. Submitted National Communications. United Nations Framework Convention on Climate Change.
• UNFCCC, 2014d. Submitted National Communications from non-Annex I Parties. United Nations Framework Convention on Climate Change.
• Webb, J., Audsley, E., Williams, A., Pearn, K., Chatterton, J., 2014. Can UK livestock production be configured to maintain production while meeting targets to reduce emissions of greenhouse gases and ammonia? Journal of Cleaner Production 83, 204-211.
• Whittaker, A., 2009. Research skills for social work. Learning Matters Ltd., Exeter, UK.
• Yan, T., Mayne, C.S., Gordon, F.G., Porter, M.G., Agnew, R.E., Patterson, D.C., Ferris, C.P., Kilpatrick, D.J., 2010. Mitigation of enteric methane emissions through improving efficiency of energy utilization and productivity in lactating dairy cows. Journal of Dairy Science 93, 2630-2638.
• York, L., Heffernan, C., Rymer, C., 2016. The role of subsidy in ensuring the sustainability of small-scale anaerobic digesters in Odisha, India. Renewable Energy 96, 1111-1118.
• York, L., Heffernan, C., Rymer, C., 2017. A comparison of policies to reduce the methane emission intensity of smallholder dairy production in India. Agriculture, Ecosystems & Environment 246, 78-85.