PinkMonkey Online Study Guide-World History
20.2 Methods to check Pollution
People all over the world have realized the harmful
effects of Pollution. Various approaches have been adopted in order
to counter the effects of pollution.
The process of reprocessing waste products so that
they can be used again is known as recycling. Things like cans and
paper can be broken down and used again for the same purpose. Things
like old tyres can be melted down using special methods to give
chemicals like oil and gas.
(ii) Technological Developments
Filters or Catalytic Converters are used in vehicles
to remove the pollutants from the exhaust and to make the process
of combustion more complete. In the case of agriculture, biological
controls are being used instead of pesticides. In this method different
kinds of insects and bacteria are used to control pests.
Limitations have been put on the use of products
like the DDT. A lot of cars today use unleaded petrol, as the lead
present in the car exhausts is one of the major causes of Pollution.
More and more car manufacturers are being encouraged to build machines
that do not require leaded petrol.
(iv) Organizations controlling Pollution
The most in influential organization in favor of
a pollution free world is the Greenpeace organization. The organization
was founded in Canada in 1971. The main aim of this international
organization is to protect the environment. Greenpeace draws the
attention of the people towards activities like, oil drilling, nuclear
bomb testing and the dumping of wastes into the ocean, which can
cause grave danger to the environment. The organization also supports
issues like, the threat to wild life because of hunting, the threat
to wild life caused by habitat loss. The methods used by the members
of the group is always direct and non-violent. If they come to know
of any activity which they think is harmful to the environment,
they reach the particular site and try to stop the activity.