Transportation accounts for a third of American CO2 generation and is the largest non-industrial source of American GHG emissions. We need to make dents here through every manner possible, including electrifying the existing modeshare, while promoting much more energy efficient modeshares like cycling and transit.
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.
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