城市污染问题英语作文（实用20篇）

Pollution around us

In recent years our life is becoming better and better. But our environment is becoming worse and worse. Its very bad for our life. Now many people have air-conditioners and cars, they produce (give off ) waste gas. More and more trees are being cut down. There are so much sand on the earth (leaving only sand ) . We often see factories pour waste into rivers or lakes. Water in the river is quite dirty. We havent enough clean water to drink in cities. Now we are in danger. Its very necessary and important to protect the environment well. I think if everyone tries his best to protect the environment, the world will become much more beautiful , and our life will be better and better .

我们周围的污染

近年来我们的生活越来越好。但是，我们的环境越来越糟。它对我们的生活很糟糕。现在很多人都有空调和汽车，他们生产的（出）废气。越来越多的树被砍伐。有那么多的沙子在地球（只留下沙）。我们经常看到工厂把废水倒入河流或湖泊。河里的水很脏。我们没有足够的干净的水的城市。现在我们有危险。这是非常必要和重要的保护好环境。我想，如果每个人都尽自己最大的努力去保护环境，世界将变得更加美丽，我们的生活会越来越好。

It was the industrial revolution that gave birth to environmental pollution as we know it today. The emergence of great factories and consumption of immense quantities of coal and other fossil fuels gave rise to unprecedented air pollution and the large volume of industrial chemical discharges added to the growing load of untreated human waste. Chicago and Cincinnati were the first two American cities to enact laws ensuring cleaner air in 1881. Other cities followed around the country until early in the 20th century, when the short lived Office of Air Pollution was created under the Department of the Interior. Extreme smog events were experienced by the cities of Los Angeles and Donora, Pennsylvania in the late 1940s, serving as another public reminder.

How to save environment? I think we should do the followings: First, it’s best to ride a bike to school, don’t take a bus or a taxi. Second, I will remember to turn off the lights when I leave the classroom.

Third, in my free time, I will collect the empty bottles and waste paper for recycling. The fourth idea is turning off the shower when I ‘m not using it. Fifth, it is imporment to save water and money.

Also, I won’t spend too much money on expensive things. Last, we had better not cut down the trees, we have to take care of the trees . I’ll try my best to save the energy, I hope I can do something for our country.

Protecting the Environment

With the improvement of our living standard, more and more people can afford a car. As a result, our roads are more often than not crammed with cars. However, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious. So nowadays we advocate to lead a low-carbon life.

My suggestion is we should ride bikes more often instead of driving cars.By riding a bike, we can not only exercise our body but also protect our environment. Why not have a try, my dear friends?

life in the city is very different from life in the villages and on the farms. people in large cities are much more careful to respect the privacy of the individual. sometimes this feeling seems to be one of indifference, but it is a convention of city life to curb ones curiosity about the personal affairs of strangers. villagers and farmers are likely to show a great deal of interest in all their neighbors. opportunities for bright young people are greater in the cities and there has been a steady stream of hopeful jobseekers from the villages and farms to the large metropolitan areas.

今天又为大家更新一篇中考作文范文，关于减肥的问题的。

假设你是《21世纪中学生英语报》“heart to heart”专栏的编辑.下面是你收到的一位中学生的来信.请你根据他来信的内容写一封回信.针对他的问题。

Dear Xiaowei,

Weight problem is quite common among teenagers everywhere. So Idon’t think you have much to worry about. Here are my suggestions. Eating lateat night is OK, but you should to eat more fruit and vegetables, which are goodfor you. Also, when you are free, you’d better do more exercise. Running isgreat. You don’t like running alone, but what about running with your friends?Or you can do some team sports like basketball. I’m sure your friends will bewilling to help you lose weight. I hope you have as much success in losingweight as you have had in your studies. “Believe myself, and I will win.” It’sreally important for us when we meet difficulties. Don’t lose heart; I’m sureyou will succeed one day.

Good luck.

Editor

Environmental Protection No one，regardless of race, religion or nationality, can deny that the world we live in is becoming increasingly intolerable because of the effects of global warming. According to many experts, even greater impacts are still on the way. There are numerous causes for this problem. On one hand, human-related emissions of carbon into the atmosphere is causing, and will in the future cause, significant global warming according to the theory. On the other hand, the lack of knowledge about the importance of protecting environment hinders the solving of the problem. It is urgent that immediate and effective actions should be taken right away. First, more trees need to be planted to help improve and beautify the environment. Besides, stricter laws concerning global warming and irresponsible use of fuel resources have to be put into effect and achieved good results. In a word, there is a long way to go before we can take a comfortable world for granted again .

点评：环境问题也是四级作文命题重点话题之一。大学英语四级考试曾经考过Make our Cities Greener.近年来，全球气候异常，造成许多自然灾害的频繁，保护环境刻不容缓，已成为全社会乃至全人类共同关注的热点。

Cars have created a lot of serious problems in our world.

All the time, they are pumping huge amounts of waste gases into the atmosphere, causing disease and even death.

One possible solution is to design and develop clean cars and clean fuels.

But it may take decades for the new models to completely replace the traditional ones.

Another solution is to develop modern public transportation systems and restrict the use of private cars.

If the price of petrol rises constantly and the public vehicles are efficient and convenient enough, most people will not drive private cars.

On the whole, the elimination of air pollution needs the co-efforts from the government and the public.

This problem will be solved only with the help of science and technology.

环境保护问题是中考热门话题，出现频率高，难度较大，必须掌握。

1 、6月5日(June 5)是世界环境保护日，我们周围的环境变得越来越糟糕，污染越来越严重……。假如你是学生Jone.，你校要进行“如何保护我们的环境?”专题演讲比赛，要求：(1)、举例说明环境存在的问题1-3方面;(2)、如何保护好我们的环境，采取怎样的措施，举例1-3方面进行说明，字数80左右。

As we all know，the environmemt around us is getting worse and worse .In some places，we cant see fish swimming in the river or trees on the hills. Some people even have no clean water to drink. So I think we must do something to protect the environment. But what can we do?How to protect our environmemt ?For example，we can go to school on foot or by bike . we can use shopping baskets not plastic bags when we go shopping，and we can use both sides of the paper when we write .In a word，if everyone pays more attention to our environment ，there will be less pollution and our life will be better.“There is only one earth”，I hope everyone will protect our environment well.

2、保护环境

( 四川乐山) 从2008年6月1日起，国家将禁止商家免费提供塑料袋，掀起全国“拒塑”的环保运动。假如你是李华，准备以“What Can We Do for the Environment” 为题，写一篇保护环境的英语演讲稿。 内容包含：

(1)。在购物时用布袋子替代塑料袋;(2)。尽可能地再利用使用过的课本;(3)。离开教室应关灯;(4)。最好走路或骑自行车上学;(5)。简述理由：保护环境，减少污染，节约能源等。

参考词汇：布袋子cloth bag 塑料袋plastic bag 保护protect 能源energy

污染pollution 课本textbook

What Can We Do for the Environment

our environment is becoming worse and worse，what can we do for the environment?I think each of us can do a little bit to help with this problem.

The first thing we can do is to use cloth bags instead of plastic bags when we go shopping. It helps to protect the environment. The second thing we can do is to reuse the old textbooks as possible as we can. We should also never forget to turn off the lights when we leave the classrooms in order to save energy. Whats more，it would be better if we walk or ride a bike to school. We should try our best to reduce pollution and waste.

In fact，even the simplest everyday activities can make a real difference to the environment. I believe we can make the world a better place to live in.

3.为了保护地球有限的资源，我们应该采取什么措施呢?请根据下面的提示写一篇约80词的短文，短文开头已经给出。提示词;1.save water，the source of life，protect drinking water，stop polluting，make full use of it;2.save electricity，crucial，turn off，other electric machines;3. save forests，useful，stop cutting down;4.recycle useful rubbish，save resources

参考作文：

Although the world develops much faster and better，the resources on the earth get fewer and fewer.In order to protect them，something must be done.

Save water. Water is the source of life. No water，no life. So its very important for us to do so.Not only should we protect drinking water and stop polluting it，but also make full use of it.

Save electricity. It is crucial. We cant imagine what the life will be like without it.Everyone should do his best to save electricity. Dont forget to turn off lights or other electric machines when we finish working.

Save forests. They are useful .Please stop cutting them down and use recycled paper instead. Make our world a green one to live in.

Recycle useful rubbish. Plenty of rubbish can be recycled like cans，paper，bottles，and so on.

We can save resources in this way. I believe we can make the world a better place to live in.

Control Environmental Pollution

Today, as the development of the technology, people live a much better life than before, the average wage is promoted highly. The economy develops at the cost of polluting the environment, we can see the pollution everywhere, like the river water is dirty, the situation is so serious that we must take some action to control the environmental pollution. First, we should not throw away the rubbish, whenever we have rubbish at hand, we should keep the habit to throw it into the dustbin, sometimes the garbage can be recycled. Second, the government should make some measure to punish the industry which is not deal with the pollution well. With the government’s intervention, the businessmen will pay special attention to the pollution and dare not to ignore it. Protecting the environment needs everyone’s effort, to ourselves and our offspring’s health, we must take action to protect the environment.

控制环境污染

今天，随着科技的发展，人们比之前生活得更好，平均工资也大幅度提升。经济的发展却是以污染环境为代价，我们随处可见污染，比如河水很脏，这样的情形是如此的严重，我们必须采取措施来控制环境的污染。第一，我们不应该乱扔垃圾，无论何时我们手中有垃圾，应该养成扔进垃圾箱的习惯，有时候垃圾是可以循环利用的。第二，政府应该采取一些措施来惩罚那么不处理好污染的产业。有了政府的干预，商家就会格外注意污染，不敢忽视。保护环境需要每个人的努力，为了我们和后代的健康，我们必须采取措施来保护环境。

[控制环境污染英语作文

Everything grows in modern times, and it seems that nothing grows as quickly as population. Population keeps growing, and grows rapidly, firstly because peoples living standards keep going up, with better houses, better clothing, better food, secondly because people know how to preserve themselves so as to live longer, and thirdly

because they have modern medicine and medical care to ensure that usual diseases can be easily cured. There is another cause for the growth of population. Few countries or governments have realised the importance of family planning. On the contrary, some encourage child-birth.

Here are some examples of population growth from 1985 to 2000 (as anticipated).

Lima had 5.7 million people in 1985 but there were 9.1 million by 2000. Tianjin used to have 7. 9 million in 1985. By 2000 its population reached 9. 7 million. Such cities as London, Osaka, Moscow, Beijing, Karachi, Delhi, Jakarta, Seoul, and Teheran are having a similar population growth. We would not be shocked if all other cities have this rate. But some cities, like Calcutta, Shanghai, New York, and Sto Paulo boost their population even more quickly than the above-mentioned cities. Tokyo had 18.8 million in 1985. The year 2000 found 20.2 million Tokyo citizens. Mexico city had 17.3 million people in 1985, but as population specialists had predicted, that reached 25.8 million in 2000 !

The population problem is a universal concern nowadays. Any government is a failure if it does nothing about its population growth.

It never be explained why so many students on campus cheat in their examinations nowadays, regardless of the danger that teachers find their secret, as it did in the case of the boy student in the cartoon/photo above. What is conveyed in the drawing is most thought-provoking and should arouse our social concern.

The implied meaning of the picture is worth discussing. Firstly, the youngs always become quite illogical when they try to descide what can be done and what can not be done. In the light of this statement, some students are often willing to sacrifice their credibility for the privillage of getting more points and being regarded as outstanding students. Furthermore, some one is afired that he can‘t pass the final exams leading to his degree, in the fruit of being absorbed into computer games or disappointment in love.

Consequently, only by cheating can they graduate and get the degree on time. Although many reasons share the problem of this drawing, one of them can be singled out for recognition: the conditions of our sociaty. Such is human nature, that we can‘t avoid being influenced by environment. In short, the root of cheating in examinations and credibilililess on campus is combinition of many factors.

There is no blinding at the fact that, in dealing with a challenge on such scale, some strong, effective and necessary counter-measures should be put on our agenda. To the begin with, a widespread education campaign should be launched to make students realize the importance of credibility. What‘s more, the government departments at different levels and related orgnizations should make joint efforts and coordination of programs to creat a more credit environment for us. Only by this package deal, can build up a harmonious and healthy sociaty.

[关于考试作弊问题的英语作文

our lives. Americans, for example, have to cut down on the number of their total cars.They are encouraged to use bicycles, which are thought to help keep the air clean.

But this change does not come easily. A large number of workers may find themselves without jobs if a car factory cioses down. Thus the problem of air pollution would become less important than that of unemployment. Although cars have led us to a better life, they have also brought us new problems.

每年有越来越多的汽车在新车的人数以百万计的生产道路。出六个一工程美国人制造汽车，驾驶卡车，修建道路或填补气体。美国人不能没有车！

大多数美国人将很难想象没有汽车的生活。然而，一些已经认识到空气污染严重的问题，汽车造成的。污浊的空气变成有毒的和危险的健康。

一个办法让污浊的空气，就是自己做，无污染的汽车。但要建设一个清洁汽车谈何容易。在这一领域的进展非常缓慢。

另一种方法是别的东西取代汽车发动机。发明者现正蒸汽汽车以及电动汽车。许多厂商认为，这将需要几年发展为我们实践模式。

为了防止世界被污染的汽车，我们要在我们的生活有所改变。例如，美国，不得不削减对它们的总人数下降cars.They鼓励使用自行车，这被认为有助于保持空气清洁。

但是，这一变化来之不易。阿大批工人可能会发现自己没有工作，如果汽车厂cioses了。因此，空气污染问题将变得并不重要，重要的失业问题。虽然汽车已使我们更好的生活，他们也给我们带来了新的问题。

[英语作文：汽车污染环境

View of two children

now, our country the number of straight line rise, because the two population increasing, a series of problem, here, Ill give you something about with that!

The current family planning policy is unfair, urban residents having only one child, rural residents the first child is female of, can have two children. To have two children, however, leads to the housing problem, population increase, also takes more house, now scientists show that Chinas housing life for 30 years, while western countries housing service life is 2 times of our country, therefore, our countrys house of fast, down too fast, the house is always not enough, so a few people who are facing problems dont have a house to live.

Today, our countrys arable land has also been a lot of problems, such as: 1, due to the large area reclamation woodland lawn, cultivated land is widening. 2, due to the large-scale afforestation, reduce cultivated land quickly. 3, due to water loss and soil erosion, land desertification, human development blindly, arable land decrease quickly. 4, due to the impact of foreign agricultural products, a large number of cultivated land desolate. Because of population increase, to a large number of land reclamation, to a large number of occupation of land, only in this way can we have a new technology, will have a house to live in. So, our countrys land area is greatly reduced. But, our country a lot of land is occupied, can continuously reduce the cultivated land area, arable land decrease, many kinds of food less, even some people starve to death. Two population increase, the employment problem also more and more competition, such as: 1, the our country population base is big, need more employment, employment peak last a long time. 2, needs to improve employment mechanism, talent market, labor market development has yet to be perfected, labor elements configuration has not yet reached full optimization. 3, employment concept updating, lack of initiative entrepreneurial enthusiasm, "such as" "by" the ideas of the "to" still exist, not from their own and realistic environment, employment expectations are too high. So, young people in employment in our country may not work, cant bring home the bacon. In order to themselves and others in the future, please have fewer, eugenics. Boy or girl, is the backbone of the motherland in the future.

对二胎的看法

现在，我国的人数直线上升，因为生二胎人口增多，造成的一系列问题，下面，我给大家加讲一讲吧!

现行的计生政策不公平，城市居民只能生一胎，农村居民第一孩字是女的，能生二胎。可是，生二胎会导致住房问题，人口增多，需要的房子也多，如今科学家证明我国的住房寿命达30年，而西方国家的住房寿命是我国的2倍以上，所以，我国的房子修的快，拆的也快，房子始终不够，因此少数人正面临没有房子住的问题。

如今，我国的耕地也受到了很大的问题，如：1、由于大面积垦林地草地，耕地不断扩大。2、由于大规模造林，使耕地迅速减少。3、由于水土流失，土地沙漠化，人类盲目开发，耕地面积迅速减少。4、由于外国农产品冲击，大批耕地荒芜。就是因为人口增多，才大量的开垦，才大量占用土地，就只这样我们才能有新科技，才会有房子住。所以，我国的耕地面积大大减少。可是，我国大量的土地都被占用，耕地面积就只能不断的减少，耕地减少，种的菜就少了许多，甚至有些人被饿死。生二胎人口增多，就业问题竞争的人也越来越多，如：1、我国人口基数大，需要就业人员多，就业高峰持续时间长。2、就业机制有待完善，人才市场、劳动力市场发育还有待完善，劳动力要素的配置还未达到完全优化。3、就业观念有待更新，缺乏主动择业创业的积极性，“等”“靠”“要”的思想仍然存在，不从自身和现实环境出发，就业期望值过高。所以，我国年青人在就业方面有可能没有工作，就不可以养家糊口。为了自己和他人的未来，请少生、优生。生男生女都一样，都是祖国未来的栋梁。

This summer vacation, I joined a social practice to be a part-time tourguide. There I found something that impressed me a lot.

People who love traveling are always finding places to take a vacation, which caused a lot of troubles.For example, I found that some people were used to dropping out the trash everywhere. They just regarded the sightseeings as their houses, which cost a lot to clean it up. Besides, some one should write down their names on the trees and walls. People who wanted to leave their names whereever they went are always to punish in future.

Nevertheless, I also found some good examples, such as teaching tourists not to destroy the places of historic interests, helping clean up the environment,etc..I think we all need to teach more people not to hurt our precious nature. What we really need to do is protect them form destroying.

Blue sky white clouds, clear pledge ", when heard the words of the lyrics, the situation here is as in the word can describe the same. Nowhere to escape the sun pledge according to the heat. Alas - once the leafy village are now built a small house. In this new era, in a little bit of modern human, and the earth began to a little bit of become scarred, become overwhelmed.

According to research, the green coverage rate reached 30%, the carcinogenic substances in the air can fell by 58%, carbon dioxide at least by 90%, but now dont say those big cities, is even we this small country is doomed.

When summer arrives, sorching summer, cement road tan as hot as the red coals in the kitchen. Not a piece of green plays for us to talk, everyone stay at home, alone the cool, from a distance is very bleak.

Plants also is life, people are enjoying provide rich resources, it gives us life bring us countless convenience at the same time, should learn to be grateful. I can conveniently, for example: plant to filter and absorb the dust in the air is good, it is understood that the atmosphere through the forest, can reduce the amount of dust, 32% fly ash quantity reduced by 30%!

Dear classmates, greening can bring us a lot of good life, why dont we take action? Let us join hands and according to the requirements of the ecological civilization, cherish the nature, protect the environment, we will be more beautiful tomorrow!

蓝蓝的天空白云飘，晴空万里当头照”，当听到这句歌词时，此处的情景已如词里所形容的的一样了。太阳当头照酷暑无处逃。唉—曾经绿树成荫的小村如今都建起了小洋房。在这样的新纪元里，人类在一点点的现代化，而地球却开始一点点的变得伤痕累累，变得不堪重负。

据研究，在绿化覆盖率达30%的地段，空气中的致癌物质可下降58%，二氧化碳至少下降90%，可如今不要说那些大城市，就是连我们这个小乡村都难逃厄运。

一到夏天，炎炎酷暑，水泥路晒得如同灶里的红炭一样炙热。没了成片的绿茵供我们嬉戏畅谈，所有人都呆在家中，独自乘凉，远远望去甚是凄凉。

植物同样是生命体，人们在享受它给我们生活提供丰富的资源，带给我们无数便利的同时，应该学会感恩。我可以随手举个例子：植物对空气中的灰尘有良好的过滤和吸收作用，据了解，大气通过林带，可使尘量减少32%，飘尘量减少30%！

亲爱的同学们，绿化能带给我们生活许多好处，我们为何不行动起来呢？那就让我们携起手来，按照生态文明的要求，珍爱自然，保护环境，我们的明天一定会更加美好！

ladies and gentlemen, may i take your attention? thank you! today i will give a talk about biding to host the national civilized city. with the developing of societal science and technology in the earth which i love deeply, our life becomes more and more convinent and comfortable. but on the other hand, how is our envorinment and how is people’s cultural quality. iam very sad .because people throw rabbish here and there. and people drive car again sting the rules. how terrible our city is!

but luckly, the govenment of jiang xi province hosts an activity named "bid to host the national civilizd city".it can help to ehance our cultural quality as the same time the developing of sicence and technolog.

this activity let citizens know the ture meaning of civilizd city.besides,let people know more about the basic knoeledge and low.also, let us know hosting the national civilizd city is not a thing of a moment!so we must have perseverance to do what we can do and what we should do to help our city to be more civilizable.

for example, we can hold some good activities every month.we can make some speeches to arouse the public’s aware.

when we do our best to do it, we can see the blue sky being cleaner,the rival is more beautiful, the traffic is more convinent and our city is more civilizable.

what’s more, people smlle more friendly ! that’s all.thanks!

In the past few decades, our Earth has changed a lot, but to the bad

direction. Among these changes, the air pollutions resulting from a huge number

of automobiles and coal-burning is almost the severest. The severe air pollution

alarms humans of the heavy load we have exerted on Earth by our insatiable

production and usage of automobiles. However, with the deepening of

urbanization, more cars are needed, which will make the air pollution worse.

Therefore, the following actions should be taken. First, we should apply the

most cutting-edge technologies in order to adopt new forms of energy as

substitutes for fossil fuels. Second, try hard to develop possible

transportation means, which are enviromental friendly. So that the citizens can

reduce the dependence on cars. In short, our humans should take responsibilities

for the air pollution and have to find ways to solve this problem.

In general, there are two way of traveling, private cars and public transportation.

Chinese people should regard public transportation as their first traveling opinion.

First, there are so many people living in this countries that make it so crowded.

If each chinese people own a car, there will be far more traffic jams and accidents, which increase you impatience.

Moreover, there will be far more pollution resulted from cars. Once a car started, it release huge amount of dirty gas and heat, which lead to great pollution and result in green house effect.

National Parks-Vacation-United States

国家公园-假期-美国

This past summer I took my family out on a daring trip to see three famous national parks.

刚过去的这个夏天，我带家人去看了三个知名的国家公园，来一个大胆的旅游。

First we arrived at the Grand Canyou in northern Arizona.It was very dry and unbearably hot.The view was amazing.I would say it was the best of the natural wonders I have seen in my life.

首先我们来到亚利桑那州北边的大峡谷。这里的气候非常干燥且难以忍受的热。景色是叹为观止，我敢说这是我一生中所见过的最棒的自然景观。

The second stop was Colorados Rocky Moun-tains.Because of its high elevation,we coule relax in its much cooler climate.We went on a hike.My wife and the kids were bouncing with energy,but is was killing me.

第二站是科罗拉多州的落机山脉。因为它的海拔很高，我们在那凉快的气候下能够比较轻松。我们还去登山健行，我的妻子和孩子们充满活力的蹦蹦跳跳，但可把我累惨了。

The last park we went to was the Yellowstone National Park in Wyoming.I saw the geysers for the first time.I have always wanted to see them up close and take pictures of them with my camera.

我们最后去的公园是在怀俄明州的黄石国家公园。这是我第一次看到天然的间歇性喷泉。我从以前就一直想要能够近距离地观看它并用我的照相机把那些景色拍下来。

We all agreed that the trip was great fun.The kids wanted to go again next year,but this time,I do not think we will be visiting so many places at once.

我们大家都一致认为这次的旅行是很过瘾的。孩子们还想明年再去，但是再来这次，我认为我们不会一次参观那么多地方了。

Environmental Pollution

the problem of pollution, cause, artificial substances, release, waste products, industrial production, consumption of goods, bring it under control, agriculture, chemicalsubstancea.

Environmental Pollution

I read a piece of news recently. It says that in Japan marly businessmen ave selling fresh air to customers.and now it is becoming more and more popular. Why? --Fresh air is getting less and less in Japan, and so is it in the U. S. A.

In fact, environmental pollution is a very serious problem the whole world is facing.

it is mainly caused by the waste products released from artificial substances, industrial

production and increased consumption of goods. Bedsides, the use of chemical substances

in agriculture also causes environmental pollution.Look at the sky, you can see that dense smoke is being released from the high and big chimneys; those dirty and poisonous substances are flowing into the rivers that we use for drinking water and millions of tons of waste products are heaping around us.

How to change this condition? More and more countries are trying to work out some effective means to bring it under control, but no great success has been made.

环境污染

最近我读了一则消息说在日本，许多商人向顾客出售新鲜空气，现在这种情况越演越烈。为什么呢? 因为在日本新鲜空气越来越少，在美国也是如此。

事实上，环境污染是整个世界正在面临的一个严重问题。这主要是由于人造物质，工业生产过程中所产生的废料以及消费商品的增长造成的。另外，在农业中使用化学物品也造成了环境污染。看看天空，你可以看到浓烟从高大的烟囱中释放出来，这些脏而有毒的物质流入我们赖以饮水的河流，数百万吨废物正堆积在我们周围。 中国大学排名

怎样改变这种状况呢？越来越多的国家正在试图拟定出一些有效措施控制环境污染，但至今成效不大。