| 2000 | 2017 | 2018 | 2019 | 2020 | ||
|---|---|---|---|---|---|---|
| Freight Transportation GHG Emissions (Mt of CO2e)a,b | 64.8 | 81.7 | 85.3 | 86.3 | 78.2 | |
GHG Emissions by Energy Source (Mt of CO2e)a,b | ||||||
| Natural Gas | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Motor Gasoline | 15.9 | 25.0 | 25.6 | 26.2 | 22.0 | |
| Diesel Fuel Oil | 43.2 | 53.1 | 55.9 | 55.8 | 52.5 | |
| Ethanol | n.a. | n.a. | n.a. | n.a. | n.a. | |
| Biodiesel Fuel | 0.0 | n.a. | n.a. | n.a. | n.a. | |
| Light Fuel Oil and Kerosene | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Heavy Fuel Oil | 4.6 | 2.8 | 2.9 | 3.4 | 2.6 | |
| Aviation Gasoline | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Aviation Turbo Fuel | 0.6 | 0.5 | 0.5 | 0.5 | 0.6 | |
| Propane | 0.5 | 0.4 | 0.4 | 0.4 | 0.3 | |
GHG Emissions by Transportation Mode (Mt of CO2e)a,b | ||||||
| Light Trucks | 10.2 | 15.1 | 15.7 | 16.2 | 14.0 | |
| Medium Trucks | 10.8 | 20.6 | 21.6 | 21.3 | 18.7 | |
| Heavy Trucks | 29.0 | 33.2 | 34.8 | 34.7 | 32.3 | |
| Air | 0.6 | 0.5 | 0.5 | 0.5 | 0.7 | |
| Rail | 6.4 | 7.3 | 7.4 | 7.5 | 7.1 | |
| Marine | 7.9 | 5.1 | 5.3 | 6.0 | 5.4 | |
| GHG Intensity (tonne/TJ)a,b | 71.3 | 70.5 | 70.5 | 70.5 | 70.6 | |
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