Gasoline-powered vehicles emit harmful pollutants into the air, contributing to air pollution and climate change.

Electric vehicles produce zero tailpipe emissions, making them a more environmentally friendly option compared to gasoline-powered vehicles.

Tokyo has the most extensive public transportation system in the world, with a vast network of trains, subways, and buses that efficiently serve the city's population.

Carsharing is a transportation system where individuals can rent vehicles on a short-term basis, typically by the hour or day, from a shared fleet of vehicles.

Walking has the lowest carbon footprint among the given options, as it does not require the use of any motorized vehicles or public transportation.

Public transportation helps reduce traffic congestion by taking multiple passengers in a single vehicle, thereby reducing the number of vehicles on the road.

Bicycles are powered solely by human effort, making them a sustainable and eco-friendly transportation option.

Bike sharing is a transportation system where individuals can rent bicycles on a short-term basis, typically by the hour or day, from a shared fleet of bicycles.

London has implemented a successful congestion pricing system, known as the London Congestion Charge, which has helped reduce traffic congestion in the city center.

Carpooling is a transportation system where individuals share rides with others who are traveling in the same direction, typically to and from work or school.

Electric vehicles are powered solely by electricity, making them a zero-emission transportation option.

Fare-free transit is a transportation system where individuals can use public transportation without paying a fare.

Copenhagen has the highest percentage of people who commute to work by bicycle, with over 50% of the population using bicycles as their primary mode of transportation.

A monthly pass is a transportation pass that allows individuals to use public transportation by paying a single fare for unlimited rides within a month.

Hybrid vehicles are powered by a combination of gasoline and electricity, making them more fuel-efficient than gasoline-powered vehicles.