Today, the pollution is becoming serious. Unless we stop it, we can face with the bad life. If you are a student, you can contribute to reduce pollution by many ways. First, we should put the garbage bins around school to encourage student litter trash in right place. Secondly, we can reduce the amount of smoke by travelling by bike. What more's, we should refilled pens and penclis in order to save woods. Thirdly, the most important way is that we should redecrease in our air pollution. Besides, the government should have laws for fining peple who cut down treed illegally. If we can do that, we will reduce the pollution.