Big cities suffer from smogfrom large factories. Cars with their engines have become the main source ofpollution in industrial countries. The forests Africa, South America and Asiaare cut down for the needs of industries in Europe and the USA. As aresult some species of animals, birds, fish and plants have disappeared andkeep disappearing. Rivers and lakes dry up. One of the most known examples isthe Aral Sea, which has become much smallerdue to men’s activity.
The pollution of the airand of the world’s oceans and the thinning of the ozone layer nowadays are themain problems arising from man’s careless attitude to ecology.
In Russia and theformer Soviet republics there are some areas where the environment is in a poorstate. The Aral Sea, Lake Baikal, the Kuzbass, Semipalatinskand Chernobylare such problematic regions.
For decades nuclear weaponswere tested near Semipalatinsk,and the ground is contaminated with radiation there.
More than 20 years ago apulp-and-paper factory was built on the shore of LakeBaikal. As a result of the pollution, more than 50 % of the world’s purestwater has been ruined. The whole ecological system of the lake has changegreatly.
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Big cities suffer from smogfrom large factories. Cars with their engines have become the main source ofpollution in industrial countries. The forests Africa, South America and Asiaare cut down for the needs of industries in Europe and the USA. As aresult some species of animals, birds, fish and plants have disappeared andkeep disappearing. Rivers and lakes dry up. One of the most known examples isthe Aral Sea, which has become much smallerdue to men’s activity.
The pollution of the airand of the world’s oceans and the thinning of the ozone layer nowadays are themain problems arising from man’s careless attitude to ecology.
In Russia and theformer Soviet republics there are some areas where the environment is in a poorstate. The Aral Sea, Lake Baikal, the Kuzbass, Semipalatinskand Chernobylare such problematic regions.
For decades nuclear weaponswere tested near Semipalatinsk,and the ground is contaminated with radiation there.
More than 20 years ago apulp-and-paper factory was built on the shore of LakeBaikal. As a result of the pollution, more than 50 % of the world’s purestwater has been ruined. The whole ecological system of the lake has changegreatly.