the context for any significant changes in emissions (in tCOtriggered recalculations of base year emissions e. Report source of the emission factors and the global warming potential (GWP) rates used, or a reference to the GWP source Canada's greenhouse gas quantification requirements, greenhouse gas reporting program December 2018 and http://gazette.gc.ca/rppr/p1/2019/2019-01 19/html/notice-aviseng.html Canada's greenhouse gas quantification requirements, greenhouse gas reporting program December 2018 and http://gazette.gc.ca/rppr/p1/2019/2019-01 19/html/notice-aviseng.html Greenhouse quantification in accordance with Mexican reporting guidelines.