Here is a list of the CO₂ multipliers we have selected to use in CO2nnect
Figures denote kg CO₂ per km per passenger:

• foot: 0
• bicycle: 0
• by animal transport : 0
• rickshaw/trishaw: 0
• moped: 0.073
• motorcycle: 0.094
• auto rickshaw: 0.061
• snowmobile: 0.094
• car electric: 0.043
• car small: 0.11
• car medium: 0.133
• car large: 0.183
• car hybrid: 0.084
• taxi: 0.17
• bus: 0.069
• mini bus: 0.055
• diesel train: 0.06
• electric train: 0.065
• underground/metro: 0.065
• electric tram/trolley bus: 0.042
• ferry: 0.115
• express boat: 0.53

We have tried to include the most common modes of transport to school across the globe - but we have probably missed some!
(https://co2.miljolare.no/help_sheets/?op_id=602&opt_id=98&nmlpreflang=fi)