People in major cities suffer from high levels of air pollution that causes health problems for many. Explain possible reasons for this problem and suggest some solutions.

Many megalopolises and big

cities

are known for their high levels of

air

pollution

, causing serious illnesses and even premature deaths among city residents. Even though the sources of

air

pollution

in the modern world are multiple, one of

them

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the

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–

cars

– is definitely concentrated in

cities

. Despite being the favourite method of transportation for many,

cars

are responsible for a large proportion of

the

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air

pollution

in big

cities

.

Cars

emit poisonous carbon dioxide as well as other harmful particles.

People

living in

cities

breathe

this

polluted

air

for years, and some develop dangerous illnesses like asthma and lung cancer. In order to reduce the use of private vehicles, the government should introduce two main policies. The most obvious way to reduce

air

pollution

would be to reduce the number of

cars

on the streets. One way to limit the number of private vehicles is to improve public transport. If buses and trains were comfortable and fast, many

people

would use them

instead

of driving.

For example

, in

London

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,London

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many

people

living in the centre do not own a

car

at all. Another way would be to discourage

people

from having a

car

by making it more expensive. Today many

people

can afford to get a small, old

car

. But if the government imposed a higher annual tax on

car

owners, many of them would avoid buying a

car

. In conclusion, huge numbers of

cars

on the streets of big

cities

seem to be the main source of

air

pollution

. In order to decrease

car

ownership, the government should use a combination of policies: to increase the cost of having one and to develop reliable public transport systems that city residents could use

instead

.