View your government’s military emissions data

Militaries are huge energy users whose greenhouse gas (GHG) emissions are making a significant contribution to the climate crisis.

The UN Framework Convention on Climate Change obliges some states to report on their GHG emissions every year. But because reporting military emissions is voluntary, data is often absent or incomplete – this is the military emissions gap.

This site is dedicated to tracking, analysing and closing the military emissions gap, bringing together the data that governments report into one place. Click on the map to explore what your government does, and doesn’t report.

Methodology used for the map data

Military data

Military GHG emissions data reported by Parties to the UNFCCC has been examined to gauge its status, transparency and consistency.

Under guidelines published by the Intergovernmental Panel on Climate Change (IPCC), military fuel use should be reported under IPCC category 1.A.5 (Other, not elsewhere specified). This category includes all mobile fuel consumption, such as ships, aircraft and road vehicles. It also includes all stationary fuel consumption, such as heating buildings on military bases.

GHG emissions should be reported at the most disaggregated level of each source, but current guidelines allow aggregation to protect military information. But if they are aggregated, this means that emissions from military mobile and stationary fuel use cannot be properly distinguished in UNFCCC reporting.

The reporting and review requirements for UNFCCC Annex I and Non-Annex I parties vary. UNFCCC Annex I parties are classified as industrialised countries and economies in transition, with a requirement to submit an annual national inventory report (NIR).

UNFCCC Non-Annex I parties are required to submit their first National Communications (NC) within three years of entering the Convention, and every four years thereafter. All Non-Annex I parties are required to submit a national inventory of anthropogenic emissions by sources as part of their NC and biennial update reports.

We have reviewed and listed UNFCCC data reported under category 1.A.5 only. According to the IPCC guidelines, memo items to summary tables also allow military fuel under international bunkers and multilateral operations to be included, although their emissions are not included in national totals. Where applicable, commentary notes have been included. This may include commentary on where military data is stated as being reported elsewhere, and under categories other than 1.A.5.

Annex 1 parties Iceland and Liechtenstein were not included in the map data due to them reporting very low or no military expenditure.

Military use of the greenhouse gases sulfur hexafluoride (SF6) and perflurocarbons (PFCs) – as reported under category 2.G.2a – is not included in the map data. With the exception of Japan and the United Kingdom reporting 146.15 kt CO2e in total, no disaggregated military data on emissions from SF6 and PFC use was reported to the UNFCCC for 2019.

Military expenditure

The map covers all Annex I countries and those non-Annex I countries that rank in the top 60 according to estimates on military expenditure from SIPRI for 2020. We have not included countries for which estimates on military expenditure are unavailable. SIPRI do not have recent estimates on military expenditure for the following countries: Cuba, Djibouti, Equatorial Guinea, Eritrea, North Korea, Laos, Libya, Qatar, South Sudan, Syria, Turkmenistan, United Arab Emirates, Uzbekistan, Venezuela, Viet Nam, Yemen and Zimbabwe. These countries are excluded from the ranking of global military expenditure.

The military expenditure data for Iraq, Egypt and Myanmar is reported by SIPRI as highly uncertain. Figures for China, Saudi Arabia, Oman, Ukraine, Lebanon, Kazakhstan and Luxembourg are all SIPRI estimates.

Taiwan Province of China does not report to the UNFCCC and is not included in the map data but is ranked 22nd for global military expenditure.

GDP data (2020) from the World Bank has been used to estimate a country’s military expenditure as a percentage of gross domestic product. Only GDP data for 2019 was available for Kuwait and Oman (as of 28-10-2021).

Data accessibility scoring

We have classed the accessibility of military fuel data reported to UNFCCC as good, fair, poor or very poor. In some cases, military data is ‘included elsewhere”, rather than under 1.A.5 as requested under IPCC guidelines. Where applicable, commentary notes have been included.

Grading of emissions reporting

We have qualitatively graded the reporting of military emissions data by considering the estimates on military expenditure, a country’s GDP,  the provision of disaggregated data under UNFCCC reporting requirements and the other likely contributions to GHG emissions through the military supply chain. The reporting to the UNFCCC and how this is likely to reflect total GHG emissions from the military has been classed under the following categories:

  • Very significantly under-reported.
  • Significantly under-reported.
  • Under-reported.
  • Appears to meet minimum obligation.
  • Not known.

In-country reporting of military GHG emissions

Some countries do estimate and report GHG emissions, but this typically covers energy use at military bases and fuel use from the operation of military equipment only. Any in-country reporting of military emissions by government or third parties has not been included at this stage but will be added as this website resource is developed.

Download the data

The UNFCCC data that we have collated and analysed for the map is available as a Google Sheet here. This will be updated annually.