How much does each fuel type in the mobile transportation sector contribute to emissions?

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How much does each fuel type in the mobile transportation sector contribute to emissions?

For information on transportation related emissions by fuel, see the U.S. Energy Information Administration’s Transportation-related CO₂ emissions by fuel, 1990-2017 graph (figure 5). This graph provides CO₂ emissions by year for motor gasoline, diesel, jet fuel, and all other fuels. The emissions from each of these fuel types as of 2017 is below:

• Motor Gasoline: 1,099 million metric tons of CO₂
• Diesel: 451 million metric tons of CO₂
• Jet Fuel: 247 million metric tons of CO₂
• All Other Fuels: 105 million metric tons of CO₂

In addition, the U.S. Environmental Protection Agency’s (EPA) Inventory of U.S. Greenhouse Gas (GHG) Emissions and Sinks includes data on fossil fuel combustion by sector, including transportation, and by fuel type on pages 3-6 and 3-9. Specifically, 42.3 million metric tons of CO₂ were emitted in 2017 from transportation sector use of natural gas.

You may also be interested in the EPA GHG Inventory Data Explorer, which provides information on how transportation contributes to overall emissions. As is mentioned on this page, the Data Explorer is an interactive tool that provides access to data from EPA's annual Inventory of U.S. GHG Emissions and Sinks. You can follow the instructions on the right and use the options to create customized graphs, examine trends over time, and download the data. Note that the data currently only goes through 2017. Using the filters, you can see that transportation emissions accounted for 29% of overall emissions in 2017. You may also be interested in EPA's Transportation Sector Emissions website for an overview of transportation emissions.