Via Wikipedia: "Modern gasoline engines have a maximum thermal efficiency of about 25% to 50% when used to power a car." Meanwhile, the average passenger car i

Via Wikipedia: "Modern gasoline engines have a maximum thermal efficiency of about 25% to 50% when used to power a car." Meanwhile, the average passenger car in 2000 created 11,000 pounds of co2 over the course of a year... I don't think I had seen that number before - no wonder there's a problem. https://en.m.wikipedia.org/wiki/Exhaust_gas https://en.m.wikipedia.org/wiki/Exhaust_gas