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Re:Europe’s energy crisis is about to go global as gas price... by lostlogin on Monday September 27, 2021 @02:28PM (#28674211)
When I search I get a variety of answers, with the bulk being around the same or lower CO2 emissions than your calculation. Why does it the answer vary? Does it change depending on the grade of the fuel?
Re:Europe’s energy crisis is about to go global as gas price... by epistasis on Monday September 27, 2021 @03:54PM (#28675259)
I have not found a single page with estimates as low as dmitrygr’s 18.6 pounds per gallon. The numbers from the top hits ina web search for me:

19.64 - http://www.patagoniaalliance.org/wp-content/uploads/2014/08/...

20 - https://climatekids.nasa.gov/review/carbon/gasoline.html

20 - https://www.fueleconomy.gov/feg/contentincludes/co2_inc.htm

19.6 (converted from grams) - https://www.epa.gov/energy/greenhouse-gases-equivalencies-ca...

“Just over 19” - https://epicenergyblog.com/2013/05/24/how-many-pounds-of-car...

The next hit isn’t about CO2 from burning Gas, but about the upstream emissions that go into producing gasoline, which it pegs at 3.3 to 6.7 per gallon - https://www.sierraclub.org/sierra/ask-mr-green/hey-mr-green-...

What sort of estimates are you getting?

Re:Europe’s energy crisis is about to go global as gas price... by dragonwriter on Monday September 27, 2021 @07:34PM (#28677466)
> Why does it the answer vary? Does it change depending on the grade of the fuel?

Yes, “gasoline” is a family of related fuels of different densities and compositions, and it will also vary based on assumptions about how it is burned. Incomplete combustion will result in more “dirty” pollution and less CO2.