This metric is based on the Global Reporting Initiative (GRI) G4 Guidelines. It covers one of the requirements of Indicator G4-EN18 - ‘Greenhouse Gas (GHG) emissions intensity ratio'.
GHG emissions intensity expresses the GHG emissions per unit of activity, output, or any other organization-specific metric. Many organizations track environmental performance with intensity ratios. Intensity ratios are often called normalized environmental impact data. Intensity ratio defines an organization’s GHG emissions in the context of an organization-specific metric.
Intensity ratio defines an organization’s GHG emissions in the context of an organization-specific metric. Intensity is calculated by dividing the absolute emissions (the numerator) by an organization-specific metric (the denominator).
In combination with an organization’s absolute GHG emissions, GHG emissions intensity helps to contextualize the organization’s efficiency, including in relation to other organizations.
This metric is looking for Greenhouse Gas (GHG) emissions intensity ratio:
For WikiRate researchers:
Companies who align reports to GRI’s Sustainability Reporting Standards often include a GRI Content Index or Annex where GRI disclosures, with GRI codes, are listed.
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Use G4 codes, G3 codes or keywords to quickly find values, keeping in mind that some companies report on the metric using different terms, e.g. G4-EN18 or EN18, GHG emissions or greenhouse gas emissions
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Global Reporting Initiative compliance guidance for companies:
To calculate GHG emissions intensity - G4-EN18-a:
Select an appropriate ratio denominator to represent the per-unit output, activity, or any other organization-specific metric
Calculate the intensity ratio by dividing the absolute emissions (the numerator) by the organization-specific metric (the denominator)
Reporting on this Indicator should include the following contextual information as a comment to the metric value:
G4-EN18-b: The organization-specific metric (the ratio denominator) chosen to calculate the ratio.
G4-EN18-c: The types of GHG emissions included in the intensity ratio: direct (Scope 1), energy indirect (Scope 2), other indirect (Scope 3).
G4-EN18-d: Gases included in the calculation.