Executive Summary

Varying definitions for “fugitives”, related to estimation and calculation of GHG emissions, have caused some confusion for the industrial personnel involved with tracking and mitigating emissions, as the IPCCC definitions are not consistent with other definitions applied to other non-GHG air emissions. The IPCCC “fugitives” might better be characterized as “non-fuel related GHG emissions”. By the IPCCC definition, almost 60% of the estimated 101 MtCO2eq upstream oil and gas GHG emissions (excluding oil sands) are “fugitives” whereas only about 17% would be classified as “fugitives” using standard definitions used for other types of air emissions.

Final Report