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Direct and indirect emissions: summary of upstream GHG emissions based on combination of reported data to government and OPGEE estimates, OPGEE estimates, and OPGEE estimates based on low-end diluent emission factor
In the x axis, “OPGEE” refers to original version of OPGEE used in Masnadi et al. publication,14 whereas “OPGEE∗” refers to the modified version of OPGEE based on regional/Cenovus data.
