carbondata.dev

The site has two datasets.

Emission factors is one table of Scope 1, 2 and 3 factors: how many kilograms of a gas one unit of activity produces, such as a kWh of electricity, an mmBtu of fuel, a passenger-km of travel or a dollar of purchased goods. It combines five sources:

• the GHG Emission Factors Hub 2026, which follows EPA methods;
• eGRID2024, US power plant emission rates, also following EPA methods;
• USEEIO v1.4 spend-based supply chain factors;
• the UK Department for Energy Security and Net Zero (DESNZ) 2026 conversion factors;
• Ember’s national grid intensity, from 1985 on.

Every row states its scope, gas, unit, region and the IPCC report whose global warming potentials (GWPs) were used to convert other gases into CO2 equivalents. A source_ref column points to where the number sits in the original, such as a Hub sheet, an eGRID field or a DESNZ factor ID. The site says the factor values are otherwise as published; its changes are reshaping, harmonized labels, and converting Ember’s figures from grams to kilograms.

National fossil CO2 emissions gives annual emissions for every country and the world, in million tonnes of CO2, in total and by source: coal, oil, gas, cement, flaring and other carbonates. It comes from the Global Carbon Project’s fossil CO2 dataset, part of the Global Carbon Budget. The dataset starts in 1750, though each country’s series starts when its data does (the United States series starts in 1800). It also carries international aviation and shipping as separate lines.

The site checks each source every 7 days. The emission factors table is listed as monthly and the fossil CO2 series as yearly.

What the site adds: one schema and one place-ID scheme across all its sister sites, files in JSON, CSV and Parquet, a version for every update, and checks before each one is published. If a check fails, the last good version stays live.