Environmental pollution is one of the most pressing problems facing the world today. Perhaps, in the not too distant future, garbage will occupy all of our land and living area. And the earth - our green planet will be only a black color of garbage. It's time for us to save the environment, our own lives! A few seconds to put the trash in the right place, a minute to put the trash in its proper classification and a reminder for everyone to put the trash in the right place. Instead of having to spend billions of dong to clean up trash and treat pollution, the government can drastically increase awareness campaigns and sanction those who lack awareness. A lovely trash can with the words "Give me trash" regularly placed on the sidewalk, in buildings will attract attention. The old people often teach: "Clean house is cool, clean bowl is delicious".