List of countries by greenhouse gas emissions per capita

Crippa, M ; Guizzardi, D ; Pagani, F ; Banja, M ; Muntean, M ; Schaaf, E ; Quadrelli, R ; Risquez Martin, A ; Taghavi-Moharamli, P ; Köykkä, J ; Grassi, G ; Melo, J ; Suárez-Moreno, M ; Sedano, F ; San-Miguel, J ; Manca, G ; Pisoni, E ; Pekar, F

This is a list of sovereign states and territories by per capita greenhouse gas emissions due to certain forms of human activity, based on the EDGAR database created by European Commission. The following table lists the 1970, 1990, 2000, 2010, 2020, 2021, 2022 and 2023 annual per capita GHG{{refn|group=n|Greenhouse gases (GHG) constitute a group of gases contributing to global warming and climate change.

The Kyoto Protocol, an environmental agreement adopted by many of the parties to the United Nations Framework Convention on Climate Change (UNFCCC) in 1997 to curb global warming, nowadays covers seven greenhouse gases:

• the non-fluorinated gases:
  • carbon dioxide (CO2),
  • methane (CH4),
  • nitrous oxide (N2O),
• the fluorinated gases:
  • hydrofluorocarbons (HFCs),
  • perfluorocarbons (PFCs),
  • sulphur hexafluoride (SF6),
  • nitrogen trifluoride (NF3). Converting them to carbon dioxide (or ) equivalents makes it possible to compare them and to determine their individual and total contributions to global warming.}} emissions estimates (in metric tons of equivalent per year). The data include carbon dioxide (), methane () and nitrous oxide () from all sources, including agriculture and land use change. They are measured in carbon dioxide-equivalents over a 100-year timescale.

The Intergovernmental Panel on Climate Change (IPCC) 6th assessment report finds that the "Agriculture, Forestry and Other Land Use (AFOLU)" sector on average, accounted for 13–21% of global total anthropogenic GHG emissions in the period 2010–2019. Land use change emissions can be negative.{{refn|group=n|[[File:Global_carbon_cycle.png|thumb|200px|Global Carbon Project (2022)]] The rate of build-up of GHG in the atmosphere can be reduced by taking advantage of the fact that atmospheric can accumulate as carbon in vegetation and soils in terrestrial ecosystems. Under the United Nations Framework Convention on Climate Change any process, activity or mechanism which removes a greenhouse gas (GHG) from the atmosphere is referred to as a "sink". Human activities impact terrestrial sinks, through land use, land-use change and forestry (LULUCF), consequently, the exchange of (carbon cycle) between the terrestrial biosphere and the atmosphere is altered.

According to Science for Policy report in 2024 by the Joint Research Centre (JRC – the European Commission’s science and knowledge service) and International Energy Agency (IEA), global per-capita GHG emissions in 2023 increased by 0.9% to reach 6.59 teq/cap, a value still 0.9% lower than in 2019 (6.65 teq/cap), but have increased by about 7.3% from 6.14 teq/cap to 6.59 teq/cap between 1990 and 2023.

However, the main disadvantage of measuring total national emissions is that it does not take population size into account. China has the largest and GHG emissions in the world, but also the second largest population. Some argue that for a fair comparison, emissions should be analyzed in terms of the amount of and GHG per capita.

Considering GHG per capita emissions in 2023, China's levels (11.11) are almost two-thirds those of the United States (17.61) and almost a sixth of those of Palau (65,29) – the country with the highest emissions of GHG per capita in 2023.

Measures of territorial-based emissions, also known as production-based emissions, do not account for emissions embedded in global trade, where emissions may be imported or exported in the form of traded goods, as it only reports emissions emitted within geographical boundaries. Accordingly, a proportion of the produced and reported in Asia and Africa is for the production of goods consumed in Europe and North America.

According to the review of the scientific literature conducted by the Intergovernmental Panel on Climate Change (IPCC), carbon dioxide is the most important anthropogenic greenhouse gas by warming contribution. The European Union is at the forefront of international efforts to reduce greenhouse gas emissions and thus safeguard the planet's climate. Greenhouse gases (GHG) – primarily carbon dioxide but also others, including methane and chlorofluorocarbons – trap heat in the atmosphere, leading to global warming. Higher temperatures then act on the climate, with varying effects. For example, dry regions might become drier while, at the poles, the ice caps are melting, causing higher sea levels. In 2016, the global average temperature was already 1.1 °C above pre-industrial levels.