The world environment means what is around us. The air we breathe, the soil on which we stand and walk, the water we drink are all part of the environment. The most serious environmental problems are:

• Pollution in its many forms;
• Noise from cars, buses, planes and other transports;
• Destruction of wildlife and countryside beauty;
• Shortage of natural resources;
• The пrowth of population.

There is no ocean or sea which is not used as a dump. Many rivers and lakes are poisoned too. Fishes and reptiles can’t live in them. There is not enough oxygen in the water. In such places all the birds leave their habitats and many plants die. If people drink this water they can die too. It happens so because factories and plants produce a lot of waste and pours it into water places.

To make air clean again we need good filters at nuclear power stations, at factories, plants and also in cars and buses. Both clean air and clean water are necessary for our health and for health of animals. If people want to survive they must solve these problems quickly. Man is beginning to understand that his environment is not just his own town or country but the whole earth. That’s why people all over the world think and speak so much about ecology.