Picture is by SorbyRock of Newsvine,  online, in which an article answers this question.

The answer is that one gallon of gasoline puts 20 pounds of CO2 into the air.

Therefore, since one ton is 2,000 pounds, 100 gallons of gasoline produces one ton of CO2 put into the air.

I am a person who would like to remove all the CO2 from the air that I personally have put into it.  That means that I have to remove a massive, yet to be determined, amount of CO2 from the air.

A person uses about as much energy as a 100 watt bulb.  This undoubtedly  varies with the person’s age, gender, with the time of day, stress levels, and so on.  But as an approximation, we’ll use this.   So a person uses about  100 watts X 24 hours or 2,400 watt hours in a day, which is 2.4 kilowatt-hours in a day.

One gallon of gas contains an amount of energy equivalent