Electric vehicles (EVs) have a battery instead of a gasoline tank, and an electric motor instead of an internal combustion engine.What are the tailpipe emissions from a plug-in hybrid electric vehicle (PHEV) or an electric vehicle (EV)? What about hydrogen fuel cell vehicles?.Electric vehicles (EVs) also emit a small amount of GHGs due to air conditioner/HFC leakage. For gasoline vehicles, the emissions of HFCs are small in comparison to CO 2 however, the impact of these emissions can be important because they have a higher global warming potential (GWP) than CO 2. In addition to carbon dioxide (CO 2), automobiles using gasoline produce methane (CH 4) and nitrous oxide (N 2O) from the tailpipe and all vehicles can emit hydrofluorocarbon (HFC) from leaking air conditioners.Are there other sources of greenhouse gas (GHG) emissions from a vehicle?.Every gallon of gasoline burned creates about 8,887 grams of CO 2. This assumes the average gasoline vehicle on the road today has a fuel economy of about 22.2 miles per gallon and drives around 11,500 miles per year.A typical passenger vehicle emits about 4.6 metric tons of CO 2 per year.What is the average annual carbon dioxide (CO 2) emissions of a typical passenger vehicle?.The average passenger vehicle emits about 400 grams of CO 2 per mile.How much tailpipe carbon dioxide (CO 2) is emitted from driving one mile?.Visit for more details, including the calculations. The hydrogen combines with oxygen to form water (H 2O), and carbon combines with oxygen to form carbon dioxide (CO 2). When gasoline burns, the carbon and hydrogen separate. Most of the weight of the CO 2 doesn't come from the gasoline itself, but the oxygen in the air. How can burning one gallon of gasoline produce 8,887 grams (approximately 20 pounds) of tailpipe carbon, when one gallon of gasoline weighs only about six pounds?
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