are discarded everywhere. You might have seen plastic bags flying in the sky and getting caught in the trees when the wind blows or maybe you have seen old cans floating in the rivers and polluting the water. Our environment is the place in which we live, but it is being ruined by us.
There is a story about house and trees. It is said that a man??s house was surrounded by a lot of trees. Though the wind was strong, that man could have a good rest under the trees. How comfortable the life was! One day, that man wanted to enlarge his house, so he cut down all the trees. Then the autumn came without the protection. The strong wind blew the roof of the house into the sky. The whole house was gone with the wind. What a pity! But that??s the price people have to pay for destroying in the ecology balance. People shouldn??t be short-sighted. Protecting the environment is everyone??s task.
As you know, there are four kinds of pollution. They are air pollution, water pollution, waste pollution and noise pollution. But what can we do to solve the pollution? I think, firstly, we can make cars that don??t pollute the environment. We can ask companies to use modern clean technology. In some big cities, we can limit the number of cars. Secondly, we can try to use less water and make sure that we do not pollute the water. We can tell factories that they are not allowed to pour waste water into the lakes and rivers. Thirdly, we should not throw rubbish in parks and cities. We can pick up rubbish if we see it. We can put more rubbish bins in our parks and cities. Fourthly, we can live far from the noise and make the laws to limit the noise.