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Originally Posted by AzX5
http://autos.yahoo.com/articles/auto...orst-polluters
...Burning one gallon of gasoline emits 20 pounds of carbon dioxide, the EPA says.
Is that right? One gallon of gasoline doesn't even weigh 20 pounds, how can it cause 20 pounds of carbon dioxide?
Not a very good endorsement for diesel if you ask me.
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Recalling, hazily, my chemistry, I think the gas/diesel combustion process
combines the fuel carbon atoms with the heavier oxygen atoms, (maybe 2 O atoms at at time),
and thus the CO2 formed is 3 times as "heavy" coming out the exhaust pipe. I seem to recall
that diesel fuel, in some trucks, pumps out nearly 30 lbs of CO2, per gallon of diesel.
I have no dog in this fight...and, my "chemistry recall" and arithmetic
could be slightly off the mark, but in the ballpark.
