"Figure 2: Estimates of the UK’s greenhouse gas emissions range from 473 to 784 million tonnes of CO2 equivalent in 2016","" "Official estimates of greenhouse gas emissions according to different domestic and international bases, UK, 2016","" "","" "Notes","1. Territory-based emissions include emissions released in the UK by tourists and foreign transport operations and exclude the emissions of UK residents abroad. Similarly, they include emissions from businesses based in the UK but registered abroad, but exclude those from businesses registered in the UK but based abroad. 2. Territory-based emissions from Crown dependencies of Guernsey, Jersey and the Isle of Man. Territory based emissions from the UK's overseas territories of Gibraltar, the Falkland Islands, the Cayman Islands, Montserrat and Bermuda. 3. Emissions relating to international air travel and shipping are included as explanatory memorandum items for both UNFCCC reporting and the Climate Change Act, but are not currently formally included in their targets. There is currently no international agreement on how to allocate such emissions to individual countries or measure such emissions in a robust manner. 4. Emissions from the burning of biomass includes burning of wood, straw, biogases and poultry litter for energy production. 5. Residency-based estimates include the emissions of UK residents based abroad but exclude emissions released in the UK by tourists and foreign transport operations. Similarly, they include emissions from businesses registered in the UK but based abroad and exclude those from businesses based in the UK but registered abroad. This basis allows comparability with the international United Nations System of National Accounts (SNA) and System of Environmental Economic Accounting (SEEA). 6. Footprint estimates are calculated on a consumption basis and provide estimates of emissions associated with the consumption of goods and services by households within the UK. They include estimates of emissions associated with each stage of the supply chain for those goods and services, irrelevant of whether or not their production process occurs within the UK. 7. Theoretically, footprint-based estimates of net imported emissions (emissions associated with imports minus emissions associated with exports) should be the same as the difference between the total footprint estimate of 784 Mt CO2e and the territorial-based (including aviation and shipping) estimate of 515 Mt CO2e. However, in practice, the different approaches used to calculate these estimates mean that they make different assessments of the emissions resulting from UK production for UK consumption. 8. Footprint estimates are classified as Experimental Statistics and are subject to uncertainty. The methodology used to produce them is subject to ongoing review and refinement. 9. ONS Environmental Accounts air emissions bridging tables provide further detail of the relationship between the estimates of emissions provided in this figure. 10. Sub-totals may not sum to totals due to rounding." "Unit","Mass of air emissions per year in million tonnes of carbon dioxide equivalent (Mt Co2e)" "","" "","Net imported emissions","Exclusion of emission removals by land","Adjusting from a territory to a residency basis","Emissions from the burning of biomass","International shipping emissions","International air travel emissions","Crown and overseas territories emissions","Territory based emissions" "Footprint (consumption based)","268","0","0","0","9","34","0","473" "ONS Environmental Accounts","0","10","14","41","9","34","0","473" "Committee on Climate Change","0","0","0","0","9","34","0","473" "UN Framework Convention on Climate Change","0","0","0","0","0","0","4","473" "Climate Change Act","0","0","0","0","0","0","0","473"