EPA says it's about 8% of the transportation total, which is actually less than I would have thought. By comparison, light vehicles are at 57%. https://www.ep

EPA says it's about 8% of the transportation total, which is actually less than I would have thought. By comparison, light vehicles are at 57%. https://www.epa.gov/greenvehicles/fast-facts-transportation-greenhouse-gas-emissions https://www.epa.gov/greenvehicles/fast-facts-transportation-...