Although it is widely recognized that cars damage the environment, their manufacture and use continue to increase. Why is this the case? How could this increase be controlled?
The use of personal cars has increased more than ever before but this use of cars causes many problems. What are those problems? In order to reduce these problems, should we discourage people to use cars?
Some people prefer to travel around town by car, while others prefer public transport such as bus, trains, subway. Which one do you prefer? What are the advantages of both choices?
Traffic congestion is a growing problem in many of the world's major cities. What are some possible reasons for this problem? What solutions are there to address the growing traffic congestion problem?