与环境污染有关的英语作文汇编20篇

The Surroundings in Cities

We have to admit that, comparatively speaking, our cities are not so clean and green as those in the developed countries. There are not adequate trees, lawns and flower-beds in such big cities as Beijing,Tianjin and Shanghai.

We should make our cities greener by planting more trees, grass and flowers. A green enviromnent can bring us pleasure, beauty and fresh air. Trees, lawns and flowers will make our cities more pleasing to both the eye and the mind, improve the weather conditions and provide fresh air, all of which will no doubt do us a lot of good.

I suggest that the whole city go all out every spring to plant new trees, build new lawns in and around the city, and everyone should take care of and protect the trees, lawns and flowers, and educate the children to love them. Then year after year, our cities will become greener, more beautiful and liveable.

[城市的环境英语作文

Low-carbon life means a kind of lifestyle in which people do their best to reduce energy consumption and carbon dioxide emissions.

Then，how can we live a lowcarbon life?Firstly，we should recognize that the lowcarbon life is not only a kind of lifestyle but also a life attitude.Each of us is responsible for the greenhouse gases in our daily actions.To combat climate change we have to take the combined efforts of everyone on the planet.Secondly，we should develop good habits in our daily life.Paper cups are made from cutting forests.We should try not to use them because trees can absorb carbon dioxide and reduce greenhouse gases.Similarly，lights should be turned off when they are not used，which will greatly reduce electricity consumption.

In a word，small actions above can make a big difference.

velopment and the Environment

It is undeniable that the worsening environment has become the biggest concern of the present-day world. Land resources are dwindling because of water loss and soil erosion. Waste gases poison the air we breathe. The rivers and lakes are polluted by waste dumped in them from factories. It is probably no exaggeration to say that deterioration of the quality of the environment threatens the existence of mankind itself.

Some people are of the opinion that the environmental problem is the price we have to pay for economic development. But I do not think that this argument is valid. After all, what is the point of economic growth if peoples lives are adversely alfected by worsening environmental pollution?

There is plenty of evidence to show that sustainable development can be achieved by balancing economic growth with protection of the environment. The key to achieving this is to make people aware of the seriousness of the problem. Both governments and ordinary citizens should join hands to make this world a better place to live in, not only for ourselves, but also for future generations.

Children’s education has been concerned by the public all the time. As they

are the future and will decide a country’s destiny, so the environment matters

so much to them. Most parents expect the school can provide the children a good

learning environment and ignore the importance of home education.

School provides the children a direct stage to receive education. In the

school, the teachers pass knowledge and educate them the right value. The

children know their task and as everybody around them focus the attention on

study, so they are affected by each other and have the strong desire to

learn.

Home education is easy to be ignored by most parents, they think it is the

teachers’ duty to educate children. Actually, most criminal teenagers have

family issues. Parents haven’t set good example for the kids. Sometimes they are

even the trouble makers. Without love, teenagers won’t grow up as the strong

people.

Both school and family environment are important for the children, and they

need to be nurtured with the good examples and learn knowledge.

随着科技的高速发展，人类对资源的需求越来越多，致使南极北极冰雪融化的速度加快、海平面日渐上升、南极出现臭氧空洞、北京的沙尘暴、雾霾天气不断增加、日本大地震后造成的核泄漏污染……

当我们在享受美好生活的同时，是否想到保护环境的重要性呢?

那么，请同学们关注一下我们的校园，看!操场上、校门口、楼梯过道上漫天飞舞的纸屑、食品袋、饮料瓶;瞧，雪白的墙壁上那些张牙舞爪的涂鸦……这些都是和我们校园文明不和谐的一幕啊!

同学们，如果我们大家都行动起来，争当环保的主人翁，不乱扔纸屑、果皮，不乱涂乱画，随手捡起地上的纸屑垃圾，爱护环境，把我们的校园装扮的漂漂亮亮。当我们在绿树成荫的校园小道上漫步时，一定会感到心旷神怡;当我们在窗明几净的教室里读书时，一定会全神贯注;当我们在整洁优雅的环境中学习时，一定会心情舒畅。

优美的环境，让我们懂得珍惜，学会爱护;优美的环境，让我们知书达理，更加文明;优美的环境，让我们学会谦让，学会做人;优美的环境，让我们道德高尚，使我们的学习更加进步!

在我的家乡，人们大都没有保护环境的意识和习惯，导致生活环境十分糟糕。

先说房前屋后吧。很多人不懂得植树种花，到处是一片片空地。这样一来，夏天的中午，就算站在屋檐下，也像在蒸笼里，直感到热浪袭人;南洋风吹来，到处是尘沙飞扬，行人的眼睛都难以睁开。要是房前屋后都有郁郁葱葱的大树和花圃，浓荫如盖，花香四溢，太阳也不会这么毒辣，沙尘也不会这么张狂，景色明朗如画，空气清新甜润。

再说公路和河道吧。很多人乱扔乱丢、乱排乱放，走在路上，随处可见方便碗，连树枝上也挂着方便袋;河坡上污水横流;河面上漂浮着死鸡死猫死狗，河水都被染黑了，散发着一阵阵恶臭。要是公路上每个几十米有个垃圾桶，人们也都讲究公共卫生，那么，公路上一尘不染，河坡上明净整洁，河水清澈见底，水草悠悠，鱼儿游玩，人们会感到爽心悦目。

接下来说树林和沟渠吧。很多人不懂得保护野生动物，有的在树林里布设鸟网，捕杀鸟类;有的背着电瓶，电击青蛙，导致庄稼虫害严重，影响粮食产量。很多人不懂得回收农药瓶，打完农药后，药瓶随意丢弃在沟渠，瓶里的残留农药污染沟渠，人吃了带毒的鱼虾，就会生病。

要是注意保护有益动物，我们就会有一个鸟语花香的世界，“稻花香里说丰年，听取蛙声一片”，那该有多好啊!所以说，要想提高我们的生活质量，过上美好的幸福生活，我们要推行植树种花，形成卫生习惯，保护野生动物，维护生态环境。

解决企业环境污染问题首要是解决企业废弃物处理的成本问题。解决问题的思路是通过清洁生产在产品的原料选择、生产加工和废弃的整个生命周期中，使工业废物得以避免、减少和循环再利用。

1.源头削减，防范于未然。企业可以通过改进技术，提高原材料和能源在生产过程中的利用率，节约原材料和能源，从而减少废物;此外，企业还可以通过开发新材料来代替原来使用的材料。新材料应当具有更长的使用寿命和更好的性能，在新材料的获得和处理过程中应当产生较少的废料;使用的新材料要保证无毒无害，淘汰有毒有害的原材料，在全部排放物和废物离开生产过程以前，尽最大可能减少它们的排放量和毒性。

2.变废为宝，循环利用。循环使用工业废物，减少对环境污染的危害。

3.建立废水废气处理设施。废水废气需经过专门处理设施处理达标后才可排放。某些废水废气排量较小的企业，可以将废水废气收集运送至专业废水废气处理厂，而对于那些排放大户，必须建立自己的小型废水废气处理设施。(来源： 佰佰安全网)

White pollution persists

WEVE been hearing and talking about it for a fairly long time： curbing what has become known as “white" pollution. But still we are using the white polystyrene （PS） foam food containers and other disposable plastic products， which largely make up this form of littering.

Miandianwang， a well-known local fast-food chain， is still handing out takeout food in these PS foam containers， even though they should been phased out before December 31， 2000， under a Central Government decree. One of the waiters said in its outlet on Hongli Road on Monday that they are going to switch to environmentally friendly containers “some time in the future".

However， the Miandianwang outlet in Sams Club， which is affiliated with Wal-Mart， is offering take-out food in light brown containers which are biodegradable. Liang， a clerk with Sams Club， told Shenzhen Daily yesterday that the club required the Miandianwang outlet to do so in its contract.

According to Liang， all the departments in the club switched to biodegradable containers during the Spring Festival holiday.

Zhao Hua， with the energy division of the Shenzhen Municipal Economic Development Bureau， one of the five municipal government departments involved in the curbing of white pollution in the city， said on Monday that large companies and retailers like Wal-Mart and Vanguard have responded to the decree by switching to biodegradable containers. But she admitted that is just the tip of the iceberg in the seemingly endless war on white pollution in the city.

Zhaos bureau has met with four other relevant departments on several occasions. What they produced is not a feasible solution but an echo or rewording of the Central Government decree， according to Luo Wei from Shenzhen Municipal Legal Affairs Bureau， who is responsible for reviewing this “echo". The ”echo" has now been passed on to the municipal government which is expected to announce it formally in the near future. But Luo said shes not sure if this rewording can play a significant role in eliminating white pollution in the city. “We dont lack laws， regulations or decrees. The real concern is the effective enforcement of these laws or regulations，" said Luo.

Zhao Hua admitted that cities like Shanghai and other coastal cities which are sensitive about their image as tourist destinations are doing a better job in this regard. “Shanghai is said to have produced a very detailed handbook on how to carry out the curbing work and Hainan has even banned disposable foam slippers in hotels，" Zhao said.

Liu Guanqing， president of Shenzhen Xunbao Investment Development Co Ltd， a local manufacturer of biodegradable food containers was very eager to hear the municipal governments decision on the matter. “Since early this year， Ive seen orders fly in. Ill expand production once the government announces its stance on the issue."

[白色污染环保英语作文

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.

随着人们生活水平的提高，越来越多的人能买得起一辆车。作为一个结果，我们的道路上挤满了车。然而，随着越来越多的汽车废气排放，空气污染问题变得更加严重。所以现在我们提倡低碳生活。

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?

我的建议是我们应该更经常骑自行车而不是汽车。骑一辆自行车，我们不仅能锻炼身体，也能保护我们的环境。为什么不试一试，我亲爱的朋友?

1、We are using up our natural resources and at the same time polluting our environment with dangerous chemicals. If we continue to do this, life on earth cannot survive.

我们一边耗尽自然资源，一边产生化学污染物。如果继续这样做的话，地球上的生物将难以生存。

2、Protecting the environment is every mans responsibility.

保护地球环境是每一个人的责任。

3、if everyone could make a big contribution to environmental protection, our home will become much more beautiful.

如果每个人为环境保护作出一点贡献，我们的家园会变得更加美丽。

4、Protecting the environment，everyone，s duty.

保护环境，人人有责。

5、The short life of the flowers away, leaving behind the beauty is forever.

带走的花儿生命短暂，留下的美丽才是永远。

6、Governments of many countries have established laws to protect the air, forests and sea resources and to stop environmental pollution.

许多国家制定了法律来保护大气、森林和海洋资源，制止环境污染。

7、The protection of trees, that is, to protect themselves。

保护树木，就是保护自己。

8、In addition to the photos, nothing taken away; In addition to the footprints, nothing left.

除了相片，什么都不要带走;除了脚印，什么都不要留下。

9、Have green trees, have the pulse of the earth.

树木拥有绿色，地球才有脉搏。

10、Earth is our home, you rely on green.

地球是我家，绿化靠大家。

[保护环境英语作文例句

There are still many environmental protection problems in recent years. One of the most serious problems is the air, water and soil serious pollution. Air pollution seriously damage peoples health. Polluted water causes diseases and death. Whats more, vegetation has been greatly reduced, with the rapid growth of modern cities.

In order to protect the environment, governments in many countries have done a lot of work. This paper introduces the legislative measures to control air pollution, to protect forest resources and Marine resources, to stop any environmental pollution. Therefore, governments are play a most important function of the environmental protection today.

I think, in order to protect the environment, the government must take more concrete measures. First of all, the government should let people fully realize the importance of environmental protection, through education. Second, more efforts should be made to put the population planning policy, because more people means more people means more pollution. Finally, those who intentionally damage the environment should be punished severely. We should let them know that destroying environment means destroying mankind themselves.

仍然有很多环保问题在近几年。最严重的问题之一是空气，水和土壤的严重污染。污染的空气严重损害人们的健康。污染的水引起的疾病和死亡。更重要的是，植被已大大减少，随着现代城市的快速增长。

为了保护环境，许多国家的政府都做了很多工作。介绍了立法措施控制空气污染，保护森林资源和海洋资源，制止任何环境污染。因此，各国政府正在发挥环保今天最重要的作用。

我认为，为了保护环境，政府必须采取更具体的措施。首先，政府应该让人民充分认识到环境保护的重要性，通过教育。第二，更应努力把人口规划实施的政策，因为更多的人意味着更多的人意味着更多的污染。最后，那些故意破坏谁应该受到严厉惩罚的环境。我们应该让他们知道，破坏环境就是毁灭人类自己。

今年清明节时，爸爸自己动手做了清明饼，自己采的蒿青，说那才是真正的绿色食品。可谁知饼倒是做得不错，却有种怪味：汽油味。绿色食品不绿色了，反倒成了有毒食品，这是怎么回事呢？原来呀，爸爸的蒿青是在小区门口采的，那儿车辆进进出出的非常多，排出的尾气让人喘不过气儿，那小草一天24小时呆在那儿，能好吗？表面看起来绿油油的挺健康，其实早就中毒不浅了。要知道小草们的家园，我们的生活环境，早已被肮脏的恶劣的变质的空气所包围着，多么可怕呀！21世纪，大气污染，被称为社会一大公害。越是交通发达的国家，由汽车尾气排放的污染物越严重，已成为污染大气的罪魁祸首，激起了社会公愤。据各地监测分析，汽车尾气排放量已占大气污染源85％左右。目前，全世界的汽车拥有量已超过6亿辆，全世界每千人拥有汽车110辆。全世界的汽车拥有量以每年3000万辆的速度增长，预测到全球汽车数量将增到10亿辆。中国的汽车拥有量已超过1400万辆。在车辆不多的情况下，大气的自净能力尚能化解车辆排出的毒素。但眼下已车满为患，交通拥堵成为家常便饭，汽车本应具备的便捷、舒适、高效的特点却被过多的车辆逐步抵消。“汽车灾难”已经形成，汽车尾气更是害人不浅。

空气污染对人们的健康造成越来越大的威胁，而这些有毒气体70％出自汽车尾气。据医学界研究分析，汽车尾气的主要化学成分是二氧化硫、一氧化硫、氮氧化物、铅。它能引起呼吸道感染和哮喘，使肺功能下降，严重的可引起肺气肿。汽车尾气中的铅一般分布于地面上方1米左右的地带，正好是青少年的呼吸带，因而铅污染对青少年危害更重。汽车尾气中的一氧化碳与血液中的血红蛋白结合的速度比氧气快250倍。所以，即使有微量一氧化碳的吸入，也可能给人造成可怕的缺氧性伤害。轻者眩晕、头痛，重者脑细胞将受到永久性损伤；氮氧、氢氧化合物会使易感人群出现刺激反应，患上眼病、喉炎，尾气中氮氢化合物所含苯并芘是致癌物质，它是一种高散度的颗粒，可在空气中悬浮几昼夜，被人体吸入后不能排出，积累到临界浓度便激发形成恶性肿瘤。听听，多么可怕呀，可这一切又都是由人类自己造成的。人类呀，改变你们的生活方式吧！难道你们要做自己生命健康的杀手吗？

一天的大清晨，风吹在我的脸上暖洋洋的，我踏着轻松地脚步去公园玩。前脚刚迈进大门，忽然看到一群小朋友正在草地上玩，有的跳，有的跑，气的我火冒三丈。于是我迈开大步急忙地跑过去和他们说：“你们怎么可以这样踩，小草它也有生命的。”

此时小朋友都红着脸不好意思地对我说;“大哥哥我们错了，下次再也不这样了，做一个保护环境的好孩子。”这时我心中感到很骄傲。因为我今天我告诉了小朋友们都要从一点一滴起保护我们美丽的家园。

Nowadays we have enjoyed an increasingly prosperous life in the wake of enormous social and economic development. But at the same time, we forget that the consequence brought about by rapid economic development. For instance,greenhouse effect,dust storm,haze.

As society develops, people are attaching much importance to deal with the relationship between economic development and environmental.

Economic development is seemingly more important,the country develops much faster and better that it creates enormous job opportunities, improves living conditions and increases government revenues. However, the environment is becoming worse and worse.In order to protect the environment which we depends on, something must be done.

First and the foremost, we are expected to use public transportations instead of private cars that emit a large amount of exhaust gas. what’s more, we can plant more trees to absorb carbon dioxide and build an environment-friendly society. Last but not least, it is surely necessary to complete relevant laws and regulations.

We should remember that our future depends upon what we do right now.

[环境的变化英语作文

1. To cherish the enviroment is to love ourselves.

爱护环境就是爱护我们自己。

2.Water is the source of ourlives

水是生命之源。

3.I make an urgent appeal that measures should be taken to cope with the situation

我急切呼吁应该采取措施改变现状。

4.Our government is doing its best to take measures to fight against pollution.

我们政府正努力制定措施与污染作斗争。

5.We are sure that well win the battle.

我们坚信我们能赢得战斗。

6.Its high time that we should protect our enviroment from being polluted.

是时候我们应该防止环境污染了。

7. Keep our mountains green，the wate clean，and the sky blue.

使我们山更绿，水更清，天更蓝。

8.However，natural resources are not inexhaustible.some reserves are already on the brink of exhaustion.

然而自然资源并不是无穷无尽的，一些储量已经到了穷尽的边缘。

9.If we do something with no thought for the furture . The later generation would be in danger.

如果我们不为将来考虑，后代就会受到威胁。

10.Our earths days are numbered without urgent help.

没有及时的帮助我们的地球就屈指可数了。

11(Sth.)are bound to generate severe consequences if we keep turning a blink eye to them.

如果我们继续睁一只眼闭一只眼的话，……一定会有恶劣的后果。

1.There are still many problems of environmental protection in recent years. One of the most serious problems is the serious pollution of air, water and soil. the polluted air does great harm to people’s health. The polluted water causes diseases and death. What is more, vegetation had been greatly reduced with the rapid growth of modern cities.

To protect the environment, governments of many countries have done a lot. Legislative steps have been introduced to control air pollution, to protect the forest and sea resources and to stop any environmental pollution. Therefore, governments are playing the most important role in the environmental protection today.

In my opinion, to protect environment, the government must take even more concrete measures. First, it should let people fully realize the importance of environmental protection through education. Second, much more efforts should be made to put the population planning policy into practice, because more people means more people means more pollution. Finally, those who destroy the environment intentionally should be severely punished. We should let them know that destroying environment means destroying mankind themselves.

2.We can’t live without water, but now the water was polluted. It is the biggest problem. It influences our daily life. So we should find a way to solve this problem. Water is important resources. In our daily life, we often leave the tap on after cleaning hands. Sometimes we often drop litter in the river. So the water was polluted by us. I think we could use a bottle of water two or three times. We have to turn off the tap after cleaning hands.

Let’s try to form a good habit and save things around us. Let’s do it from now on!

Fish can’t live without water. Plants can’t live without water. People can’t live without water, either. As you can see, the water is very important to us. But now drinking water is leand less. The water was polluted seriously.

So we would act quickly in order to save the water, But what must we do nowI think we can plant trees, clean the banks of the river, water the plants by using used water. Turn off the shower while we are washing hair. And we shouldn’t drop litter into the river and so on.

It’s our duty to try our best to protect and save water. And don’t forget that if we don’t save water, the last drop of water will be our tear

Water is very important to us. We can’t live without water. But the drinking water is leand less. Because we waste a lot of water in our daily life. And some of us often throw rubbish into the rivers. So the rivers are polluted seriously.

It’s our duty to save water, we must do something to save water. For example, we shouldn’t pour waste water into the rivers and we should pick up litter around us.

If we don’t save water, the last drop of water will be our tear

导语：随着人们生活水平的提高，私家车数量不断增加。下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

Private cars have become an important aspect of people‘s life in many parts of our country, especially in large cities such as Beijing, Shanghai and Guangzhou. While they bring much convenience to people, they are also widely criticized. There are some arguments for owning private cars. In the first place, cars allow people to move around freely, which greatly improves our living standard. We can easily drive cars for sightseeing on weekends. In the second place, cars are a comfortable way to travel, especially in bad weather. Last but not least, the car industry can boost economy by creating many job opportunities in production of steel, rubber, glass and so on. However, there are also many good arguments against cars. First of all, they pollute the environment by emitting harmful gases and giving out loud noises. In addition, cars cause a large number of traffic accidents, which bring great misery to the victims‘ families. As far as I am concerned, we should limit the number of private cars by providing better mass transportation and better service for the people. Everyone should sacrifice his or her own interest for the common good of the society.

【参考译文】

私家车已成为我国许多地区人民生活的一个重要方面，特别是在北京、上海和中国等大城市。虽然他们给人们带来很多方便，但他们也被广泛批评。有一些理由拥有私家车。首先，汽车可以让人们自由走动，这大大提高了我们的生活水平。周末我们可以很容易地开车观光。其次，汽车是一种舒适的旅行方式，尤其是在恶劣的天气里。最后但并非最不重要的是，汽车工业可以通过创造钢铁、橡胶、玻璃等的就业机会来提振经济。然而，也有许多好论据反对汽车。首先，他们通过排放有害气体和发出大声的噪音来污染环境。此外，汽车造成了大量的交通事故，给遇难者家属带来了极大的痛苦。就我而言，我们应该通过提供更好的大众运输和更好的服务来限制私家车的数量。为了社会的共同利益，每个人都应该牺牲自己的利益。

Its our duty to protect ourenvironment. Where do we live? The earth. The earth is the only one place we live in. So you know how important the environment is.

保护环境是我们的义务。我们居住在哪里？地球。地球是我们唯一居住的地方，所以可想而知环境对于我们的重要性。

But now, some people are harming the environment, like cutting down trees, drawing pictures on public walls,litteringonto the ground. Its terrible if we still do it.

但是现在，很多人都在破坏环境，比如砍伐树木，在公共墙壁上乱涂乱画，随地扔垃圾。如果我们继续这样下去是非常可怕的。

Now, its time for all the people in the society to protect the environment. Its our duty. It needs each of us to make a contribution to improving the environment. We should make our environment more and more beautiful.

现在，是人们保护环境的时候了，这是我们的义务，我们都要为改善环境做贡献，我们应该努力让我们的环境变得更好。

在十年前的中国，大气污染问题对于普通民众来说可能是个比较飘渺的话题。正如空气本身的性质一样，看不见摸不着却无处不在。而专家学者们则主要关注的是对于工业生产，燃煤发电所产生的硫氧化物的处理和汽车尾气中氮氧化物的处理。十年时间飞逝，随着中国经济的迅速发展，人们生活水平的不断提高，人们开始关注生活的质量问题。与其同时越发严重的正是中国以牺牲环境为代价发展经济所带来的环境问题，其中大气污染问题尤其明显。这几年来关于温室气体和温室效应的话题被讨论得沸沸扬扬，专家们各有其立场，但对于普通百姓来说，全球变暖问题似乎仍很遥远。对于温室气体所带来的全球变暖，海平面上升，冰川融化，动植物灭亡的问题，人们大多数是在电视新闻或报刊杂志上看到，恶劣天气的频发也并不是发生在世界每个角落。相比于温室气体所带的大气污染问题，人们开始关注更多的便是最近发生在北京，广州，武汉等多地的灰霾问题。尤其是在北京持续很久的灰霾严重影响了当地人们的日常生活和身体健康，更是引起了广大专家学者和普通民众的高度关注。而其实对于灰霾现象，国外专家学者很多年前便开始研究。

那么何为灰霾？灰霾是导致近地面大气浑浊的多种空气污染物的混合体。构成灰霾的主要污染物是硝酸盐、硫酸盐、有机碳、元素碳、等固体细颗粒物（PM2.5）和臭氧()、二氧化氮（）、二氧化硫（）、挥发性有机物（）等气态污染物。灰霾往往与天然污染源的排放和二次污染污染物的形成有关，还与一定的气象条件和地形有关。我们现在最关注的同时也最难解决的室外污染物之一是可吸入颗粒物。可吸入颗粒物被分类为两种，直径小于2.5微米的颗粒物（PM2.5）和直径小于10微米的颗粒物（PM10）。虽然两种形式的颗粒物都对人类健康有极大的危害，PM2.5被普遍认为是更危险的，因为它的体积小，大约只有人类头发宽度的1/30。人们在呼吸时，PM2.5可以进入人类肺组织深处，甚至进入血液，造成严重的健康问题。同时更小的颗粒物在大气中可以有较长的停留时间。因此，PM2.5可以传播的更远，停留在空气的时间越长，影响更大的人口。PM2.5和PM10的主要来源包括机动车，电厂和其他工业源，以及生物质的燃烧。其中一个主要的来源是柴油为动力的车辆。这些污染源相结合，可以在城市或农村地区天空一片阴霾，而且往往发生在下午时段。

对于容易形成灰霾的城市,除了城市当地工业污染,汽车尾气的影响以外,特定的地形导致污染物的难以扩散也是灰霾形成的主要原因，像美国的洛杉矶,还有前面提到的受灰霾影响的北京和武汉都受到了地形的影响。洛杉矶市三面被群山包围，当地空气干燥，白天阳光充足。到了晚上，地表面冷却很快。地面附近的空气变冷，而上层空气都比较热，形成逆温。北京市位于华北平原的西北边缘，背靠太行山余脉和燕山山脉，面对辽阔的华北平原，东南距渤海约150公里, 地处暖温带半湿润地区，气候属于暖温带半湿润大陆性季风气候,四季分明，春季多风和沙尘，夏季炎热多雨，秋季晴朗干燥，冬季寒冷且大风猛烈。武汉市则居于内陆、距海洋远，周围地形如盆地，集热容易散热难，河湖多、晚上水汽多，城市热岛效应和伏旱时副高控制明显。通过比较以上3个城市的情况可以发现它们都是较大的工业城市，而且城市海拔较低，周围至少有一面是高地，都分布在低于南北纬50度的地方。这些地区夏季阳光明媚，天气温暖干燥。在城市的盆地地区，逆温现象十分普遍。夏季的阳光使地面温度升高，城市街道和建筑物迅速升温，与炎热的物体表面接触的空气温度升高。通过对流空气向上运动，但它却不能穿透逆温层，因为上面的空气温度更暖且密度更小。空气聚集，但连续的对流形成了垂直的循环，使空气完全混合在一起。从建筑物和汽车废气释放出的气体和颗粒也都聚集在逆温层下，通过对流把聚集的空气彻底混合。这样导致污染物无法快速扩散而聚集，大大增加了当地的污染物浓度。

城市内部灰霾的形成也同样受到了这种类似地形的影响，学者称它为街谷模型。随着城市化的加速，城市及城市周边的自然生态系统逐渐被人工生态系统取代，取而代之的是钢筋混凝土浇筑的高楼与马路,很容易形成城市街道峡谷。这种城市街道峡谷是指两侧有连续，高大建筑物的狭长城市街道空间。在这种地形下,上层大气在进入城市时，风速迅速降低并产生特殊的湍流，使街谷内的流场完全不同于上层大气。而气流对污染物具有显著的运输、稀释、和扩散作用，因此，对城市街谷内污染物的浓度、分布有着很大影响。北京的灰霾现象正是因为污染物积聚难以扩散而导致北京的灰霾持续了如此之久。有相关专家的研究发现,除了通过控制排放源,增大扩散和增加沉积率来降低大气中污染颗粒物的浓度以外,地面的性质也影响着颗粒物的浓度。有研究表明植被对城市空气质量能有接近5%的提高。在城市，尤其是在城市街谷地带种植植被能通过增加沉积作用而降低60%的可吸入颗粒物（PM）浓度和40%的二氧化氮（NO2）浓度。因此，通过对植被的合理利用能过创造一个有效的城市污染过滤膜，对密集城市地带空气质量的提高有着快速有效并且持续性的影响。

灰霾问题不是一个暂时性的问题，相反它是一个长久的问题，从它如何形成，加剧到我们如何解决治理并消除都需要一段很长的时间。

灰霾现象，它只是地球环境污染的一个缩影。我们更应该探究它的根源问题，什么才是它形成的根源，什么才是它加剧的根源。我们没法通过改变天然的气候和地形来解决城市灰霾问题，但我们可以通过减少排放源，通过增加植被，加强城市绿化来阻止灰霾的加剧。人类的不断进步使得人们在追求高科技的同时却忘记了自然本身的无穷力量。越来越高的大楼，越来越发达便利的交通，相反的却是城市越来越差的生活环境。在灰色的钢筋水泥世界里生活久了，人们是否会怀念那晴朗的蓝天，向往呼吸新鲜的空气和在那充满生机的绿色大自然世界里生活。

我们的环境污染我们的环境污染我们现在的生活比以前好得多，但环境跟以前简直就不能比。以前的空气清香并掺和着花草的芳香，河水清澈见底......

而现在呢?汽车排出的废气和工业废气相当多，河水臭气直出......我们大家为了过上好生活，都买汽车，但车主们有没有想过这样的量使用汽车的后果。有些地方之间的距离非常近，但车主们不想跑，就直接开汽车。假如一辆汽车一天排放一千克废气，那么中国每天大约有几千万辆汽车在行驶，那么一天就要排放几千万千克的废气。这个数目仅显示一天一千克的废气排放量和仅计算中国的废气排放情况。工厂的污染更严重，水和空气都要被污染。大量的废水排入大海和河流之中，以致大量的鱼虾、水中植物死亡和大量的水资源被污染......

我们地球上的资源也在一天一天的减少。大量可回收的品中只有3%是被回收并再生的。许多白色垃圾造成了白色污染。我心中的家园是和以前差不多的，可是这是很难挽回的。为了我么大家共同生活了几千万年的蓝色星球?——地球的美好未来而努力吧!

同学们，还记得电视台的一则公益广告吗?一只无家可归的小鸟在可怜地唱着：“我想有个家，我想有个家，我想有个家……家!在哪儿呢??”相信这个情景给大家留下了很深的印象!

地球是人类的共同家园，然而随着科学技术的发展和经济规模的扩大，全球环境状况在过去30年里持续恶化。

曾有资料表明：1860年有气象仪器观测记录以来，全球年平均温度升高了0.6摄氏度，最暖的13个年份出现在1983年以后。20世纪90年代，全球每年受灾害影响的人数平均为1.47亿，而到了20世纪90年代，这一数字上升到了2.11亿。近几年来，我国也发生了不少自然灾害。目前，世界上约有40%的人口严重缺水，如果这一趋势得不到遏制，在30年内，全球55%以上的人口将面临水荒。

自然环境的恶化也严重威胁着地球上的野生物种，加上人类的大量捕杀，许多种动物正在逐日减少。我在报纸上看到：美州猎豹早已长离世间、猛犸象早已丧命冰河、剑齿虎早就灭绝、欧洲大雷鸟接近灭绝、非洲象被逼在了绝种的边缘……我从网上获知：臭氧层被称为大地的保护伞，因为它可以挡住大部分紫外线，如果没有臭氧层的话，人类的生存将会受到威胁。可是，因为人们大量使用化学药品，南极上空已露出了大洞，臭氧层已经遭到了人类的破坏。

我可以通过以下几种方法来宣传保护环境：

1.成立组织，诚招社会各界热爱、支持环保事业的人士加入，对社会和生活环境会产生积极的影响。

2.积极主动与社会各界各阶层人士开展交流合作，用演讲传单等形式在本地区内的中小学、各大企事业单位等区域单位进行环保宣传。

3.广泛开展义务劳动和各种形式的环境保护行动。

4.开展“植树月”活动，每年争取用一个月左右的时间来绿化自己的家园。

5.大力提倡公共交通优先和绿色出行理念，每个公民尽量选择步行，减少废气排放。

6.养成良好生活习惯，把“环保”的理念树立在心中，用身体力行影响你的家人、朋友、同学及身边的每一个人。

我想，大自然既然已经向人类发出危险的警告，如果人类再不珍惜环境的话，一定会遭到大自然报复的。为了创造美好的环境，我们要珍惜大自然赐给我们的宝贵财富，从小事做起，从自己做起，保护有限的自然资源，保护人类赖以生存的环境。我希望每个人们都拿出实际行动来弥补人类的过失。