Scientists are finding ways to stop air

pollution especially in big industrial areas and densely-populated cities. They

are studying new ways of generating electricity that may be less damaging to the

environment. In the meantime, many power plants are being modernized to give off

less polluted material. Also, engineers try to design and locate new power

plants to do minimum damage to the environment.

However, it may be that we

still have a long way to go before we have a "clean" world. Nearly all of the

countries are trying hard to prevent and control air pollution. There indeed

seems to be no end to tasks that environmentalists will be required to do.

People will continually find new ways to control pollution.

关于大气污染的英文作文：控制污染