CAIT Historic allows for easy access, analysis and visualization of the latest available international greenhouse gas emissions data. It includes information for 191 countries and the European Union, 50 U.S. states, 6 gases, multiple economic sectors, and 160 years - carbon dioxide emissions for 1850-2014 and multi-sector greenhouse gas emission for 1990-2014.

The available data collections are:

  • CAIT Country Greenhouse Gas Emissions - A six-gas, multi-sector, and internationally comparable data set for 191 countries
  • CAIT U.S. State Greenhouse Gas Emissions - A six-gas, multi-sector, and comparable data set for all U.S. states.
  • UNFCCC Annex I country-reported greenhouse gas emissions to the Secretariat of the United Nations Framework Convention on Climate Change.


CAIT Climate Data Explorer. 2017. Washington, DC: World Resources Institute. Available online at:

Reuse and License

  • Except as noted below, all CAIT data carries a Creative Commons Attribution-NonCommercial 4.0 International license. This means CAIT data and analysis can be used in non-commercial applications, provided clear attribution to WRI/CAIT is given. For commercial/for-profit uses, please contact us via Find more information on and

  • Data for Land-Use and Forestry indicator are provided by the Food and Agriculture Organization of the United Nations (FAO). WRI has been granted a non-exclusive, non-transferrable right to publish these data. Therefore, if users wish to republish this dataset in whole or in part, they should contact FAO directly at

  • Any use of the Land-Use Change and Forestry or Agriculture indicator should be cited as FAO 2016, FAOSTAT Emissions Database. Any use of CO2 emissions from fuel combustion data should be cited as CO2 Emissions from Fuel Combustion, ©OECD/IEA, 2016.

  • Additionally to citing CAIT please consider citing the data sources that CAIT is using.

  • CAIT 2.0 UNFCCC data derives directly from United Nations Framework Convention on Climate Change (UNFCCC) Secretariat. Additionally to citing CAIT 2.0 please consider citing UNFCCC data source that CAIT 2.0 is using: United Nations Framework Convention on Climate Change (UNFCCC) Secretariat. 2013. "Time Series – Annex I." Bonn: UNFCCC. Available at:; Additional information for specific country sources can be found at:

View this data in CAIT