Part of a series introducing readers to current environmental issues which not only affect the planet but also health and well-being, this book investigates air pollution caused by motor vehicles and suggests ways of reducing it, including alternative methods of transport, engendering a greater sense of responsibility in the general public and examining a new technology. Readers are encouraged to investigate the topic through detective work of their own in order to reinforce the information given in the text. Fact boxes provide statistical support and additional facts for young detectives. The series aims to give a general understanding of environmental issues and encourage the reader to discover for themselves the steps that they can take as individuals to address the problems. The subject of air pollution by traffic is introduced by setting motor vehicles in context in the modern world. The historical development of transport, the benefits and importance of the car today and the reasons for its appeal are all examined in order that the scale and focus of the problem are clearly identified. Air pollution, its relationship to the motor vehicle and our responsibility for its use are discussed, using investigative activities to help the reader discover vital clues and solutions to related problems.