The recent global awareness has influenced the different business activities on a large scale and for this reason, the Green Logistics plays an important role in the contemporaneity. The aim of this work is to use methods to support multicriteria decision making such as AHP and TOPSIS to choose the most appropriate methodology to carry out the estimate of the Carbon Footprint for a distribution company, on this case Courrieros, which uses bicycles as a transportation vehicle in the city of Rio de Janeiro, and thus, compare it with the same delivery service using conventional vehicles, as motorcycle, and demonstrating the impact on the environment. Results indicated that the PAS 2050 methodology is the most recommended to perform the calculation of GHG emissions for this service. Therefore, it was estimated that when using a motorcycle as a transport vehicle, 5102.55 kg of CO2e of GHG emissions were produced in December, that is, 10.89 times more emissions than Courrieros using the bicycle, which produced only 468.48 kg of CO2e in the same period. In addition, it has been estimated that three (3) trees need to be planted to compensate for the emissions generated by Courrieros bicycles, differing widely from the bikes of the alternative company, which increases sharply to 36 trees.