Add CO2-specific sub-categories

definitions/variable/emissions/emissions.yaml

@@ -46,9 +46,25 @@
       fugitive emissions from fuels (IPCC category 1B) and emissions from carbon dioxide
       transport and storage (IPCC category 1C)
     unit: "{Tier-2 Species}"
+- Emissions|CO2|Energy|Supply|Electricity:
+    description: Emissions of carbon dioxide (CO2) for electricity generation
+    unit: Mt CO2/yr
+- Emissions|CO2|Energy|Supply|{Secondary Fuel}:
+    description: Emissions of carbon dioxide (CO2) for production of {Secondary Fuel}
+    unit: Mt CO2/yr
+- Emissions|CO2|Energy|Supply|Autoproduction:
+    description: Emissions of carbon dioxide (CO2) for own-use energy supply
+    unit: Mt CO2/yr
+- Emissions|CO2|Energy|Supply|Other:
+    description: Emissions of carbon dioxide (CO2) for other categories of energy supply
+    unit: Mt CO2/yr
+
 - Emissions|{Tier-2 Species}|Energy|Demand|Industry:
     description: Emissions of {Tier-2 Species} from fuel combustion in industry (IPCC category 1A2)
     unit: "{Tier-2 Species}"
+- Emissions|CO2|Energy|Demand|Industry|{Non-Energy Sector}:
+    description: Emissions of carbon dioxide (CO2) from energy demand in the {Non-Energy Sector}
+    unit: Mt CO2/yr
 - Emissions|{Tier-2 Species}|Energy|Demand|Residential and Commercial:
     description: Emissions of {Tier-2 Species} from fuel combustion in residential,
       commercial and institutional sectors (IPCC category 1A4a, 1A4b)
@@ -57,6 +73,14 @@
     description: Emissions of {Tier-2 Species} from fuel combustion in transportation sector
       (IPCC category 1A3), excluding pipeline emissions (IPCC category 1A3ei)
     unit: "{Tier-2 Species}"
+- Emissions|CO2|Energy|Demand|Bunkers:
+    definition: Emissions of carbon dioxide (CO2) from international bunker fuels
+      (IPCC category 1A3ai and 1A3di)
+    unit: Mt CO2/yr
+- Emissions|CO2|Energy|Demand|Bunkers|{Bunkers}:
+    definition: Emissions of carbon dioxide (CO2) from international bunker fuels
+        for {Bunkers}
+    unit: Mt CO2/yr
 - Emissions|{Tier-2 Species}|Energy|Demand|Other Sector:
     description: Emissions of {Tier-2 Species} from fuel combustion in other sectors
     unit: "{Tier-2 Species}"