The fuel of planes
Aviation fuel (based on petroleum):
Aviation gasoline
Jet fuel
Planes are more efficient in long distances than cars…
Flying can be significantly more efficient per traveler, per mile, than driving a car, when you have to ride long distances:
Automobiles → 1 billion gallons of fuel burned per day
Airplanes → 740 million gallons of fuel burned per day
The more people can be crammed into an airplane, the less carbon emissions each individual leaves behind.
…