Almost one third of US GHG emissions
come from the transportation sector, making it the largest contributor of GHG emissions in the nation.
The second most polluting mode of transportation
in the US are medium and heavy-duty vehicles, representing roughly a quarter of transportation emissions. Greenhouse gas emissions from these vehicles have increased by more than 90% since 1990.
179 million metric tons
of GHG emissions were generated by commercial passenger flights departing in the US in 2019, making the US the world's largest producer of aviation emissions.
81% of US energy is generated by fossil fuels, which is used to heat our homes, run our vehicles and generate electricity. For over 200 years, our quality of life has depended on fossil fuels. We now know that the use of fossil fuels is harmful to both the environment and public health, and the use of fossil fuels needs to stop.
2019 US transportation GHG emissions by source
2019 US GHG Emissions by Sector
2019 US transportation Sector GHG emissions by source
US Transportation Energy Sources 2020
Volume of medium and heavy-duty truck GHG emissions in the US from 1990 - 2019
Annual air transport GHG emissions in the US from 1990-2019
Pathway to reducing aviation emissions through 2050
Sources of US electricity generation in 2020
The average age of America's heavy-duty fleet
US biomass-based diesel supply
US biomass-based diesel production