Pollution caused by transportation

For Passenger traffic:

Aviation:

0.24 Kg CO2 / psrmile    short plane

0.18 Kg CO2 / psr mile   long plane


Cars


0.44 Kg CO2 / psrmile

Bus

0.3 Kg CO2/ psrmile


Rail

0.16 kgCO2/psrmile

An engine consumes 30 units / km



For freight traffic: ( Kg CO2)

0.8 / ton-mile ( by air)
0.17 /............by truck
0.14..............by train
0.04 .............by Sea