In the picture , we can see that a red car driving on the road with much exhaust gas emission. With the development of our country, our living standards is also improving , but in the same time , environmental damage is more serious . the exhaust gas emission is the particularly important bit.
Traffic jam is a growing problem in our cities and it is becoming more and more serious as the city’s developing . As a result of traffic growing, the city’s pollution is growing, too. And in some point , we can say it is a big sorce of pollution in cities . The Cars play an important role in modern society . But they are also responsible for a good part of air pollution in big cities . The carbon dioxide is the outcome of transportation and it seriously cause the greenhouse effect.
As we all know , the sulfur dioxide and nitric oxide are also making by cars . And this two kinds of gas play more important role in city pollution . For people, especially children and elderly people, with breathing problems, polluted air can be very harmful, sometimes even fatal.
In another word ,when you enjoy all the conveniences that the city has to offer, you are paying a price also because the city is more polluted and crowded . And we have to say traffic is a big source of pollution in cities. It is becoming a big problem for resent years . To resolving these problems scientists began to develop new energry vehicles and certain achievement .Our administration is also taking action .For example , some big cities as our capital Beijing achieved the limit of travel and encouraged by bus ,by subway or by bike to go out .
Green tertravel，green living will become mainstream in the near future .And the air will be more clear ,the sky will be more blue ,our life will be more better with less exhaust gas emission !