Global warming is one of the biggest threats to our environment. What causes global warming? What solutions are there to solve this problem?

there are several perspectives to solve

traffic

,especially in huge cities. some

people

have

this

viewpoint that the government must develop public transportation

such

as the train and subway lines.

in contrast

, other groups think if the state increases the figure of bigger

roads

will be able to decline traffics. on the one hand, there are those who subscribe to the view that the union must rise the statistic of train and subway lines. from

this

point of view,

although

the price of

this

model of transportation needs to be a significant budget, most

people

will be willing to use

this

transportation so the amount of

traffic

reduces.

Moreover

, the schedule of

this

type of transfer is often on time so the satisfaction of passengers grew rapidly and the consumption of private vehicles declined over a long period.

on the other hand

, many commentators justifiably argue that there are advantages to developing

roads

. there are some

people

that have to use private transport, for ,example family in early childhood, older

people

, or when the weather is crazy.

as a result

of the government

having

Change the form of the verb

has

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a negative attitude toward developing

roads

, there will have several problems in the city.

furthermore

from an industrial viewpoint,viewpoints the number of cars in every country is increasing every day. in conclusion, both sides of view have several merits that need to reduce

traffic

jams.

in other words

, we cannot eliminate each opinion. so if we want to control

traffic

especially in the inner city or in the future, we must build wide

roads

and rise the number of subway lines and trains.