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Global Reporting Initiative+Greenhouse Gas (GHG) emissions intensity ratio (G4-EN18-a)+methodology

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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.

  • Use the GRI Index, CTRL F, Command F or search button on source preview to search for this index and metrics within the report

  • 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

  • Always check the metric question and methodology for the unit of measure or currency - researchers may need to carry out calculations or conversions before entering the final metric value

  • Add comments documenting exactly where within the source you found the information (page number) and include details of simple or complex calculations or conversions made to determine the metric value

  • If you are unable to locate a metric value in a source you can search for additional sources where the data is available and add a new source

Further guidance on how to research values for GRI-based metrics is available here, including detailed guidance on adding, editing and checking metric values.

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.