Those who flew in 2020 had twice the environmental impact of those in 2019
Green Car Congress
SEPTEMBER 15, 2021
The energy intensity of a transportation mode is calculated by dividing the amount of fuel used by the number of passenger miles traveled and converting the result into a common measure—Btu (British thermal units) per passenger mile traveled. Energy intensities of flying and driving, in Btu per passenger mile. Certificated air carriers.
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