[cc439]

I don't think this works correctly. It claims my medium sized sedan puts out roughly ~125lbs of CO2 on a 100 mile trip. Unless my car somehow generates carbon out of nothing, that's the equivalent of burning nearly 20 gallons of gasoline (at ~6.3lb per gallon) for a regular drive to a customer site.

[randomlurker]

Carbon from the gas reacts with air so you need to factor the mass of the oxygen the car uses as well to produce CO2 and other emissions. It's been a long time since chemistry class but you could calculate the end mass of the CO2 using teh atomic weights of carbon and oxygen used in the inputs, or there's probably a website that will do the math for you.