Our World
in Data

Carbon footprint of travel per kilometer

The carbon footprint of travel is measured in grams of carbon dioxide-equivalents per passenger kilometer. This includes the impact of increased warming from aviationemissions at altitude.

OurWorldInData.org/transport •

Note: Data is based on official conversion factors used in UK reporting. These factors may vary slightly depending on the country, and assumed occupancy of public transport such as buses and trains.

Related: Which form of transport has the smallest carbon footprint?

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