Since ancient times Nature has served Man, being the
source of his life. For thousands of years people lived in harmony with
environment. But with the development of civilization man's interference with
nature began to increase.
Large cities with thousands of smoky industrial
enterprises appear all over the world today. They pollute the air we breathe,
the water we drink, the land we live in. Many cities suffer from smog. Vast
forests are cut and burnt in fire.
As a result some rare species of animals, birds, fish
and plants disappear forever.
Environmental protection is a universal concern. That
is why serious measures to create a sistem of ecological security should be
Some progress has been already made in this
direction. As many as 159 countries-members of UNO- have set up environmental
protection agencies. The accident at Chernobyl nuclear power station in April
1986 caused radioactive pollution of a vast area.
The international organization Greenpease is also
doing much to preserve the environment.
The Earth is our home. We must take care of it for
next generations and ourselves.