City bus: carbon footprint

City bus comes in at about 7.94 kg CO₂e / 100 km (per 100 km).

Of the 11 ways to get around Carbonle tracks, City bus sits at #6 from the lightest — mid-pack.

Distance times how it's powered. Rail is cheap, a seat on a plane is not.

7.94 kg CO₂e to travel 100 km. (79.36 g per passenger-km, DEFRA 2022.)

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Figures from DEFRA 2022 GHG factors: 79.36 g/passenger-km × 100 km, licensed OGL v3.0.
How we get these numbers: Methodology.