近些年来，空气污染问题日益受到人们的关注。写一篇有关这方面的短问，内容应涉及：

1. 空气污染的危害

2. 一些可行的解决方法。

The air pollution is harmful and it can be solved.

The air pollution does harm to people. It causes people to suffer from some illnesses such as a headache and a couth. And it affects the environment, too. For example, in some heavily-polluted areas, plants do not grow well or can’t grow at all. But something can be done to solve the problem. First, we can develop a good public bus transportation system to reduce the number of cars on the roads. Cars are the main source of air pollution in many places. And second, we can move all the pollution-causing factories out of cities.

To sum up, something can be done to solve the serious problem of air pollution.