ALSA y el Medio Ambiente

Best environmental practices at ALSA handbook

ALSA is dedicated to achieve economically, socially, and environmentally sustainable mobility, while also developing policies and initiatives responsible for the environment.


You must give a valid number of kilometres.

Find out how many CO emissions2 you can help prevent by travelling by bus.

Bus travel is the most energy-efficient and least-polluting method of transport. Find out for yourself:

Enter the number of kilometres of your journey:
kg CO2
kg CO2

A saving of

kg CO2

equivalent to:

  • 0 coffee makers
  • 0 hours of TV
  • 0 energy for a home

Calculations are based on:

  • Coach: 0.029 kg (0.06 lbs) CO2 / passenger and kilometre. This data is independently calculated by the Edinburgh Centre for Carbon Management and is based on an average coach load.
  • Car: 0.14 kg (0.3 lbs) CO2 / passenger and kilometre. This is derived from the DEFRA (Department for Environment, Food & Rural Affairs) CO2 emissions factor for an average petrol car which is 0.180 kg (0.39 lbs) CO2 / vehicle per km, and the average load of a car: 1.6 people / journey (DfT - Department for Transportation of the UK).

Data source:

More is less

If you want to know more about our environmental policies, feel free to download the brochure:

ALSA More is less (Más es menos) (PDF 5012 kb)