Common questions

What does CarbonKit do?
CarbonKit lets you discover, calculate, store and process data and information related to greenhouse gas emissions.
So I can calculate my CO2 emissions?
Yes, and much more besides! CarbonKit provides all of the data and models necessary for calculating various GHG emissions in categories such as different types of car or train transport, types of fuel or country-specific grid electricity, electrical appliances, and agricultural or industrial processes.
Does CarbonKit have an API?
Yes. View the API documentation at
Can I store data in CarbonKit?
Yes. Not only can you store data in CarbonKit but you can easily report on it over arbitrary time periods. Data is stored in CarbonKit as "profile items". Profile items are currently in limited public beta. Contact us for details.
Can I perform ad-hoc calculations?
Yes. Every category page has a built in calculator tab.
Do you have any more details?
To learn about the structure of data and calculation methodologies in CarbonKit, visit the Introduction to CarbonKit page.
Where does the data come from?
CarbonKit contains data and calculating methodologies from numerous sources including the IPCC, the US Environmental Protection Agency and Energy Information Administration and the UK government agency DEFRA, as well as the World Resources Institute (WRI) Greenhouse Gas Protocol which aggregates data from these and other primary sources.
What do you mean by "open source emissions data"?
All the emissions data and algorithms in CarbonKit are open source. You can find the datasets in GitLab.
How can I contribute?
We welcome merge requests to the GitLab dataset repository.