Science
The science behind carbon numbers, explained in plain language.
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Emission Factors Explained: Where Carbon Footprint Numbers Come From
An emission factor converts activity, like kWh or litres of fuel, into kg CO₂e. Learn where factors come from, why they differ by country…
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What Is CO₂e? Carbon Dioxide Equivalent Explained
CO₂e, or carbon dioxide equivalent, is a single unit for comparing greenhouse gases by their warming effect. See how it is calculated, with examples.