In case someone else is wondering about the math on the aside about how a gallon of gas (3.8kg) can emit 10kg of CO2: https://www.fueleconomy.gov/feg/contentInc

In case someone else is wondering about the math on the aside about how a gallon of gas (3.8kg) can emit 10kg of CO2: https://www.fueleconomy.gov/feg/contentIncludes/co2_inc.htm https://www.fueleconomy.gov/feg/contentIncludes/co2_inc.htm