Making emissions data easy for everyone

All of our emissions data is sourced directly from official Common Reporting Tables (CRTs) submitted by each of the UNFCCC's member countries. Most major countries submit one CRT per year. These tables offer the most comprehensive structured breakdown of national emissions and are our starting point.

We restructure the raw CRT data to be easier to search and understand. We apply custom 'Open Emissions categories' to the data that better reflect how most users think about emissions pools, and tag each emissions source with a 'type' indicating whether it came from fuel combustion, chemical processes, leakage (fugitives), or land & biomass.

Data is updated periodically as new country submissions become available through the UNFCCC's public site. For most countries, this occurs in mid-May each year.

If you use Open Emissions to find emissions data, we'd appreciate if you could cite us:

In addition, we suggest citing the UNFCCC directly.

Data and written content hosted on Open Emissions is provided under the Creative Commons Attribution 4.0 International (CC BY 4.0) license. You are free to share and adapt the material for any purpose, provided you give appropriate credit.

The underlying emissions data is sourced from UNFCCC public submissions and is subject to the UNFCCC's terms of use.