Serious problem about air pollution.

I found serious news about air pollution on the BBC.

The evidence which shows that air pollution can be a cause of not only some diseases but also cancer for your body were reported by International Agency for Research on Cancer (IARC). It is said that air pollution can be categorized into the same category as tobacco smoke and plutonium.
I think that the fact is very important for all of the people now, because the environment is suffered from air pollution and made worse especially recent years. In Beijing, much smog is emitted everyday by people because of using cars. The smog cover the city and has been become very serious environmental problem. I have watched news that the smog is including a lot of PM2.5 and the amount of particle has been increasing.It is said that the particle makes asthmatic's physical condition more worse. In this way, air pollution will be the cause of a lot of disease, so I think that people have to be more strict to the pollution problem.

Question
1 Do you have any ideas to stop the problem?
2 What kind of things will be affected by the problem except for your health?