Quote:
Originally Posted by California98Civic
But the comparison in the second question is between a car with a catalytic converter and one without a catalytic converter. So, if one of the cars doesn't have a catalytic converter at all, does it still emit any carbon dioxide and how much? Phrased differently, how much carbon dioxide is emitted by a car without a catalytic converter?
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I'd have to do the research (google) because I don't know the proportion of CO2 vs CO with/without a cat.
That said, my hunch is that the difference is negligible, and it would be better to produce CO2 than CO, even if it's a stronger greenhouse gas.
The main byproduct of combustion is water, though.