ChartOur World in Data

Carbon dioxide emission factors

Emission factors quantify the average CO₂ output per unit of energy. They are measured in grams of CO₂ per kilowatt-hour (kWh) of energy from various fossil fuel sources.

Source
Our World in Data
Updated
26 Nov 2025
Last checked
17 Sept 2026
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Data visualization: Carbon dioxide emission factors

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IPCC – Emission Factor Database (2025)

Attribution: IPCC

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