Transport Systems

On the Go

In a Flash

Green Traffic Light

Some forms of transport are more polluting than others.

Transport systems

For most of us, the family car is the most common way of getting from A to B. But finding greener alternatives to our air-polluting cars is much better for our environment – and you might just find that ditching the car is more fun too!

Burning Questions

What is air pollution?

The burning of fossil fuels is a major cause of air pollution in our towns and cities. This can come from power stations, as well as the engines of cars and other vehicles.

Bad Car Diagram

Exhaust fumes emit gases like CO2, nitrogen oxide and carbon monoxide.

How do cars affect our environment?

Our cars pump out all kinds of nasty gases, including nitrogen oxide and hydrocarbons, which pollute the air and can cause respiratory problems for some people.

In highly-polluted areas, air pollution can result in harmful smog – a mixture of smoke, gasses and moisture. Nitrogen oxide also contributes to acid rain when it mixes with water in clouds, causing damage to wildlife and plants.

What are the alternatives to taking the car?

There are plenty of healthy and fun ways to get around without going by car.

Here are some ideas:

Public Transport

Take public transport: Catching the bus, taking the train or hopping on a tram or ferry are all more environmentally-friendly ways to travel.


Carpool or walking bus: Arranging a carpool with friends or setting up a walking bus route is a fun and sustainable way to get to and from school.

Walking or Cycling

Walk or cycle: For shorter journeys, ride your bike or use your own two feet! It's better for the environment and for your health.

Walking or Cycling

Other: There are many different types of human powered vehicles such as scooters and skateboards.

What Do You Mean?


Some cities create heavy smog during peak hour traffic.

Air pollution is the presence of harmful substances in the air.

Smog is a type of fog caused by pollutants in the atmosphere.

Cool Facts

Car pollution causes more than 50% of the carbon monoxide in the air. This gas contributes to harmful smog and can be extremely dangerous.

Cool Facts

Over 30% of the carbon dioxide in the air is caused by cars. Carbon dioxide is a major factor in global warming.

Speedy Summary

Walking Traffic Light

Walking Traffic Light

Different forms of transport have different impacts on our environment. Cars emit harmful gases into our atmosphere, so finding greener methods to get from A to B – like walking, cycling or public transport - is a great way to live more sustainably.

Teacher's Toolkit

Take this to the classroom!
Curriculum ready content.