Emission factors
The carbon footprint of everyday choices.
The real emission factors used inside the Decarbonr app — foods per 100g from Poore & Nemecek (2018), transport per passenger-kilometre from the European Environment Agency and IPCC. Click any item for the full breakdown.
Food g CO₂e / 100g
2,990
2,420
1,350
1,220
620
550
450
410
320
200
200
200
120
100
50
g CO₂e / 100g · data as used in the Decarbonr app · sources: Poore & Nemecek (2018)
Travel g CO₂e / km
280
255
231
192
105
20
g CO₂e / km · data as used in the Decarbonr app · sources: European Environment Agency, IPCC
See your own number
Decarbonr turns these factors into one clear daily CO₂e figure — tracked privately on your iPhone.
