• Environment

Operational Impact

  • Environmental Policies & Performance

Greenhouse Gas Emissions: Total (OI1479)

Amount of greenhouse gases (GHG) emitted through the organization's operations during the reporting period. This should include GHG emissions from direct and indirect sources.
Reporting format
Number of Metric Tons of CO2 Equivalent
Metric type
Metric level
IRIS metric citation
IRIS, 2016. Greenhouse Gas Emissions: Total (OI1479). v4.0.


Organizations should footnote all assumptions used including detailed information on their calculation methodology. See usage guidance for further information.

Usage Guidance

  • The Greenhouse Gas Protocol (GHG Protocol) is the most widely used international accounting tool to understand, quantify, and manage greenhouse gas emissions. The GHG Protocol defines direct and indirect emissions as follows:
    - Direct GHG emissions are emissions from sources that are owned or controlled by the reporting entity.
    - Indirect GHG emissions are emissions that are a consequence of the activities of the reporting entity, but occur at sources owned or controlled by another entity.
  • The GHG Protocol further categorizes these direct and indirect emissions into three broad scopes. For more information on the GHG Protocol organizations can refer to:
    - Greenhouse Gas Protocol Standards
  • Organizations are also encouraged to report Greenhouse Gas Emissions Strategy (OI8237).