1. Centre for Ecology and Hydrology (CEH) (2015) United Kingdom: land cover map. London
2. Committee for Climate Change (CCC) (2019) Reducing emissions in Northern Ireland. London
3. Department for Agriculture and Rural Development Northern Ireland (DARDNI) (2006) Expenditure and Food Survey: purchased quantities of household food & drink by household composition (three-year averages) 2005–2006. Belfast
4. Department of Agriculture, Environment and Rural Affairs (DAERA) (2018) Animal farm census. Northern Ireland Statistics Research Agency (NISRA), Belfast
5. Department of Agriculture, Environment and Rural Affairs (DAERA) (2019a) Northern Ireland greenhouse gas inventory 1990-2017. Belfast: Statistics and Analytical Services Branch, DAERA