Definition The total greenhouse gas emissions caused by an organisation, product or activity, measured in tonnes of CO₂ equivalent.
Example 10,000 litres of diesel × 2.5 kg CO₂e per litre gives a footprint of 25 tonnes of CO₂e.
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Why it matters You cannot reduce emissions without first measuring them.
Where it is used Sustainability reports, travel policies and product labels.
How to calculate it Activity data (such as litres of fuel) × emission factor
Worked example 10,000 litres of diesel × 2.5 kg CO₂e per litre gives a footprint of 25 tonnes of CO₂e.
