Презентация на тему по английскому языку на темуEcological problems

the source of his life. For thousands of years

people lived in harmony with environment and it seemed to them that natural riches were unlimited. But with the development of civilization man’s interference in nature began to increase.

appear all over the world today. The by-products of

their activity pollute the air we breathe, the water we drink, the land we grow grain and vegetables on.

about 1000 million tons of dust and other harmful

substances. Many cities suffer from smog. Vast forests are cut and burnt in fire. Their disappearance upsets the oxygen balance. As a result some rare species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up.

destruction of the ozone layer is the result of

man’s careless interaction with nature, a sing of the ecological crises.

its people after the Chernobyl tragedy in April 1986.

About 18% of the territory of Belarus were also polluted with radioactive substances. A great damage has been done to agriculture, forests and people’s health. The consequences of this explosion at the atomic power-station are tragic for the Ukrainian, Belarusian and other nations.

is why serious measures to create a system of

ecological security should be taken.

direction. As many as 159 countries- members of the

UNE- have set up environmental protection agencies. Numerous conferences have been held by these agencies to discuss problems facing ecologically poor regions including the Aral Sea, the South Urals, Kuzbass, Donbass, Semipalatinsk and Chernobyl.

up on Lake Baikal. The international organization Greenpeace is

also doing much to preserve the environment.