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GCSE Geography · key term
A unit that expresses different greenhouse gases in terms of the equivalent amount of carbon dioxide with the same warming effect.
Used by Edexcel
Specification 6.7 · Paper 2
Revise: Measuring Environmental Impact: Carbon and Ecological FootprintsA carbon footprint measures greenhouse-gas emissions. It is usually expressed in kilograms or tonnes of carbon dioxide equivalent, written kg CO₂e or t CO₂e. Carbon dioxide equivalent combines different greenhouse gases into a common measure of their warming effect.
Paper 3
A unit that expresses the warming effect of different greenhouse gases as the equivalent amount of carbon dioxide.
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A carbon footprint measures greenhouse-gas emissions associated with a person, organisation, activity or product. It is expressed in kilograms or tonnes of carbon dioxide equivalent, written CO₂e. This puts different greenhouse gases into a common unit based on their warming effect.