Passenger cars are 33% of transport-related GHGs, the single largest category for transportation-related GHGs. Transportation-related GHGs is the largest catego

Passenger cars are 33% of transport-related GHGs, the single largest category for transportation-related GHGs. Transportation-related GHGs is the largest category of GHGs in the whole pie for the US and comprises 27% of US GHGs. 33% of 27% is 8.9%. Light-duty trucks are 17.2% of transportation-related GHGs, so 4.6% of overall US GHGs. The US already has a heavily used freight-rail network. [1]: https://www.epa.gov/greenvehicles/fast-facts-transportation-greenhouse-gas-emissions https://www.epa.gov/greenvehicles/fast-facts-transportation-... [2]: https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P10153PC.pdf https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P10153PC.pdf