Buses are the most eco-friendly type of transportation

Your private economy is not the only winner when you sit down in the seat of a long distance or tourist bus. The environment is also winning.

Danske Busvognmænd (Danish Bus Operators) have calculated the environmental impact of long distance bus travels and compared it with similar travels with trains and cars. The buses are the greenest and emits the least pollutants (good for the environment) and less CO2 (good for the climate) per passenger.

The table below shows the emissions per passenger travelling from Copenhagen to Aarhus with three different types of transportation.









Long distance bus, Euro 6 0,03 2,59 0,2 7,49 0,2 6.300 85,14
IC3 express train 0,35 45,94 1,78 4,86 2,23 7.922 107,05
Car, Diesel
1,4-2,0 liter, 
Euro 6
0,13 29,42 0,45 1,48 0,51 13.919 188,1


The calculations were done by Danske Busvognmænd (Danish Bus Operators) using TEMA2015, the Danish Ministry of Transport’s tool for calculating energy consumption and emissions in transport in Denmark.

On the route between Copenhagen and Aarhus the bus emits 6,3 kg CO2 per person. An IC3 express train emits 26% more CO2 per passenger on the same route, while people driving in cars emits 13,9 kg CO2 per passenger – more than twice the amount of a bus passenger.

Long distance bus traffic is not just more eco-friendly because of lower CO2 emission, it also emits fewer harmful particles, nitrogen, sulfur dioxide and hydrocarbon. Only carbon monoxide emission is higher than the other types of transportation. These pollutants from traffic affect people’s health and are therefore extra important to avoid when driving in populated areas.