环境和人类英文作文【汇集19篇】

The earth is our only home to this day, and many people know that "there is only one earth, we should love it", but some people just talk about it and do nothing. They dont know that some very small actions can protect the environment -- by sorting out the garbage and using the battery to choose the rechargeable battery. Plant more trees in your spare time...

Now the earth is seriously ill, mainly caused by air pollution, water pollution and soil pollution.

Air pollution is mainly caused by the floating of material from factories, power stations and car exhausts into the atmosphere, making the air "dusty and footless". In cities with severe air pollution, people and animals are also affected and stunted. In addition, if the atmospheric carbon dioxide content is too high, it will produce a greenhouse effect, which will melt the ice in the south and south poles and reduce the ozone layer rapidly, which will eventually lead to global warming. It is not difficult to prevent this phenomenon. We can use the power of the transportation to replace the diesel fuel, thus reducing the exhaust emissions, the simplest way of course is to plant more trees.

Water source pollution is mainly caused by waste water and climatic factors. With the increase of population and the extension of human life, mankind will face unprecedented water scarcity. Some people say that the worlds water supply will be in short supply after 2030. To this, we must pay attention to saving and protecting water resources.

Soil pollution is my concern, because soil has a huge connection to air and water. Without soil to grow plants, there is no source of air, and soil is an important survival basis for plants and animals. Without soil, we humans could die. So we must protect the soil. There are many ways to protect the soil, such as in daily life, dont bury things like disposable batteries and foam plastics into the soil. We need to start small, and everyone is helping to protect the soil.

The earth is the cradle of life and the common home of mankind. We should love the earth and protect the earth.

We want to hold a green Olympic Games ,so everyone should do something useful to protect the environment ,whether it is big or small.

我们要举办一个绿色奥运，每个人都应该做些无论是大或小的有用的事来保护环境。

We should do something to stop people from doing bad things to the environment .We should put rubbish into dustbins instead of throwing it about. Everyone must care for flowers ,grass and tress in public .We shound collect things like paper ,plastic bags our neighborhood as well ,it’s necessary to plant more trees every year .

我们应该做些什么来阻止人们对环境做一些不好的事情。我们应该把垃圾放进垃圾箱而不是直接扔了，每个人都必须爱护公共场所的花，草，树木。我们应该收集社区的一些像纸，塑料袋的东西，每年种植更多的树是必要的。

It is everyone’s duty to make our neighborhood much better with our hands minds .Let’s make a contribution to protecting the environment and the Plympic Games successfully.

用我们的双手和头脑使我们的社区变得更好是我们每一个人的职责。让我们为保护环境做贡献，祝奥运会成功。

How to protect/save our environment/world?

The environmental pollution is worse and worse /more and more seriously today. Water is polluted; we have no clean water to drink. Many trees are cutting down, some animals is getting less and less. Some factories are pouring dirty air in the sky, the population is increasing faster and faster, resources are getting less and less…etc. Not only does it affect our lives and health, it but also has a great affection in the future. Peoples health has been greatly affected by air, noise and water pollution. Many people died of diseases. In order to live a better life, we need protect our world。

We shouldnt throw away rubbish everywhere. We want to recycle, reduce, reuse things .Dont waste things. This saves money and reduces pollution. Use things for as long as possible. We dont use plastic bags. We must plant more trees and stop the people cutting them .We hope our world becomes more and more beautiful。

1972年6月5日至16日由联合国发起，在瑞典斯德哥尔摩召开“第一届联合国人类环境会议”，提出了著名的《人类环境宣言》，是环境保护事业正式引起世界各国政府重视的开端。中国政府也参加了这个会议。

中华人民共和国的环境保护事业也是从1972年开始起步，北京市成立了官厅水库保护办公室，河北省成立了三废处理办公室共同研究处理位于官厅水库畔属于河北省的沙城农药厂污染官厅水库问题，导致中国颁布法律正式规定在全国范围内禁止生产和使用滴滴涕。1973年成立国家建委下设的环境保护办公室，后来改为有国务院直属的部级国家环境保护总局。各省（市、区）也相继成立了环境保护局（厅）。并设立环保举报热线12369和网上12369中心接受群众举报环境污染事件。

政府的环境保护部门主要职责是执行各级议会（人民代表大会）制定的控制污染物排放政策，鼓励开发污染物排放控制技术以控制污染，保护和改善环境。

[关于人类保护环境的作文

We all know Tagore.This famous Indian poet once said, “Life is given to us, and we earn it by giving it.” As the saying goes, nature is given to us, and we earn it by contributing to it. However, most people nowadays just want to ask for more from the nature. In fact, they do very little contribution to the nature. Therefore, the environment around us is becoming worse and worse.

Do you often use batteriesThen do you know it takes 50 times more energy to make them than they produceAnd just one simple battery can pollute as much water as a person can drink in his whole life. The facts and figures are amazing. So would you please try to use batteries only when it is necessaryIf possible, give the used ones to the recycling companies so that they will be made into new ones and won’t be able to pollute the environment any more.

Sometimes we become complacent when it comes to recycling, but when you speak in terms of actual facts and figures that everybody can understand, people become much clearer about the problem.

We, as school students, can also join in recycling activities to protect the environment. For example, our class set up a recycling

center beside the back door, it is very useful. It is used to collect the waste paper and plastic bottles. In the past, our classmates used to throw all of these into the trashcan. At the very beginning of this collecting activity, it was not so warm-welcomed. Later, more and more people were influenced by the others and joined this collecting activity. Gradually, all the students in our class form a good habit to protect the environment. All of us will now put away the reusable things instead of throwing them into the trashcan.

We should always remember in our mind that protecting the environment is our duty that we can never neglect. Finally would you please let me end this speech with a little poem, “Be kind to the river. Be good to the trees. Smile at the sunshine, and bow to the breeze. Be friendly to nature, and nature will be friendly to you!”

[保护环境的作文英文

The fast-developing cities severe environmental imbalance constructs the high demands of productivity and low demands of living standards of the daily lives. The butterfly effect is the main approach towards the promotion of environmental protection. Its inefficient when only one person whos acting on protecting the environment, but if one starts the others would follow. Teaching environmental protection in early age is also crucial since the inconsideration of pursuing short-term interest not only set the milestone for the public hazard, but also the destruction of our planet. Moreover, the environmental protection should be the priority for the future of all countries, for good standard of living starts by embracing the ecological balance of the nature.

法国政府1996年4月提出了一项与城市污染作斗争，将市民“呼吸对身体无害的空气”的权利放在神圣地位的方案。

在法国市区行驶的汽车与伦敦一样激起公愤，而首先站出来为汽车辩护的是商店和其他做生意的人，因为他们担心限制使用小汽车会使他们失去顾客。

当局是因为担心夏秋两季空气质量会下降而采取措施的。法国公众担心夏秋两季的空气污染比伦敦和罗马有过之而无不及，而且柴油车尾所已危及某些郊区的生存。政府提出的措施是规定市政委员会必须监测空气质量并向公众通报、制订净化空气的地区计划和目标、当预测到空气污染已达到不能忍受的程度时允许局部交通限制实行局部交通限制、重新研究“汽车在有25万以上人口的大都市的作用”。其中大多数将在1998年之前生效。

尽管议案与公众的期望相去甚远，但仍不失为法国的起步。多年来，法国在接受“绝色”问题上落后于许多北欧国家。回收利用业相对不发达，直到前不久，空气质量还没有被作为一个问题提出来。

Some people believe that the Earth is beingharmed(damaged) by human activity。 Others feel that human activitymakesthe Earth a better place to live。 What is your opinion?Usespecific reasons and examples to supportyouranswer。

People have been living on the Earth for thousands of years。Humanactivity influences the Earth。 Some people believe that theEarth isbeing harmed by human activity。 Others feel that humanactivitymakes the Earth a better place to live。 In my opinion， theearth isbeing damaged by human activity。 There are manystatementssupporting my opinion。

Human activity has damaged natural environment and almostexaustednatural resources。 Modern industry needs more and moreresources，including minerals， fuels and water。 So we confront ofthe seriousproblems such as the lack of fuels and water。Ecological balance isdamaged because factories occupy many placeswhere animals andplants live。 More and more buildings areconstructed and forestsbecome less and less。 If we cannotrecognize these problems andsolve them soon， we would finally losethe environment suitable forour living。 An other serious problem is the green-house effect。

Humanactivity decreases forests and increases the usage of fuels sothatthe gas of carbon dioxide is output more and more and there arenotenough plants to absorb it。 The green-house effect is moreobviousand more sensible these years。 Due to the effect， icebergsin thesouth polar and north polar melt and the sea level becomeshigherthan before。 I am worried about the cities nearby the sea andhopescientists find an effective method to eliminate thegreen-houseeffect。 Although we have advanced machines and our life seemsmorecomfortable than before， we have less chances to approachnaturesand less spaces to act。 The cities become bigger and if wewant tohave a picnic with our friends， we have to drive a longdistance tofind a natural place。 In fact， the spaces of humanactivity arebeing damaged by the skyscrapers and factories。 From the above statements， we can conclude that humanactivitybrings the Earth many damages。 Fortunately people haverecognizedthe point and I believe that the Earth will become abetter placeto live with our ceaseless efforts。

[英语作文：人类活动破坏了环境

As the technology and economic is developing, the environment problem is becoming a severe problem, and the people are seriously affected.

随着科技和经济的发展，环境问题变得严峻，人们也受到严重的影响。

The sustained damage to the environment has caused a serious problem, such as air pollution, sand storm, extraordinary weather, and diseases etc., people suffer from what they have done to the environment.

对环境的持续破坏已经导致了一系列问题，例如大气污染，沙尘暴，反常气候还有疾病等等，人们对环境的破坏让他们尝到苦果。

However. People have realized that it will be too late if they don’t do anything to prevent things from getting worse. For example, there is an “Earth Hour” on a Saturday of March of each year. It is a global movement, usually it lasts from 8:30pm to 9:30pm. It is also called “Light-off for One Hour”. During this hour, all the light will be turned off. The purpose of this movement is not only to save energy, but also to warn the people to realize the importance of protecting the mother earth, and to stop violating the environment.

然而，人们已经意识到，如果他们不做些事情来防止情况继续变糟的话，就太晚了。例如，每年三月的一个周六，有一个“地球一小时”，这是一个全球性的运动，通常从晚上8:30持续到晚上9:30。也叫做“熄灯一小时”。在这一小时里，所有的灯将会被关掉。这个运动的目的不仅仅是节约能源，还警示人们意识到保护地球母亲的重要性，停止对环境的破坏。

Anyway, people and the environment have to keep a balance relationship. People take from the environment, and have to protect it too.

无论如何，人与环境必须要保持一种平衡关系。人从环境索取，也要保护它。

This is the earth.The green part is land.The blue part is sea.The white part is clouds.Our earth is very beautiful and interesting.There are rivers, streams, seas and lakes.There are hills and mountains.There arejungles and forests.There are many countries and cities.There are many people live in them.Do you think the earth is very wonderful?Many years ago, the earth is very clean.But nowadays there is much pollution on the earth.There is air pollution, land pollution and water pollution.People are cutting down the forests.Many wild animals, birds and insects lose their homes.Its very cruel.

People are polluting the land, the water and the air.People must stop doing this.We must save the earth.We must save our home.

The empty dam below my home was clean and tidy, and now the empty dam is full of rubbish, especially on rainy days, polluted water, and pedestrians passing by. The other people, because of the strength of the power, threw the garbage just hanging on the tree, ugly dead.

Im going to talk to the grown-ups. Theyre not talking to me. What are the kids doing? And drove me out. After I was driven out, I thought to myself, "this cant work. I can go to the neighborhood committee." So I went to the neighborhood committee. When I arrived at the neighborhood committee, I said to an aunt, "aunt, I want to reflect that someone in this building is littering." Aunt kind of say: "kid, the things we already know, one building will see you in a few days to clean the residents of the building to education, by the way you, you are quick to go home." I had to go home and wait for someone to clean. A few days later, we actually saw someone to clean, clean the people of the whole building up and down, left and right, fringes sweep of very clean, after finished, clean people will start all the residents of education building (including me), finished her education and clean people have left. After I passed this, I never saw him/them littering.

I suggest that we really want to protect the environment, because it is peoples responsibility to protect the environment. If people do get it right, we can have a good home.

人类的生存与发展离不开环境，然而，人类在谋求自身的生存与发展的同时，不断地将生态破坏和环境污染带给地球家园。

人类破坏环境的作文一

灰椋鸟生活在森林里，它们过得很幸福，可是灾难降临了-

一座座工厂建立在这片森林的小河边，把污水排进水里，致使小河变得肮脏不堪，动物们喝不到清水，一个个搬家了，可灰椋鸟们却没走，因为它们觉得森林是它们的家，一定要保护好家。

一个年长的灰椋鸟说：要保护森林一定要有力量，可我们这么小，哪来的力量啊？鸟们陷入了沉思。突然，小鸟果果说出了一个好办法，它说：我们灰椋鸟总是帮人类消灭害虫，如果我们停止吃虫，让虫子繁殖下去，看他们怎么办？这个主意好！灰椋鸟们齐声说。

接下来的几天里，由于小鸟们停止吃虫，虫类迅速繁殖，连人都控制不住了，市长连忙让人调查。过了几天查出结果后，市长想：连鸟都知道要保护环境，我们人类怎么不知道呢？市长立刻下令说：立刻拆了森林的工厂，并让工厂里的人个植十棵树，来表达我们的歉意，如有违令者，将他关进大牢！

过了一年后，这里就变成了动物的家园，它们快乐的生活在这里，而这座城市也变得犹如世外桃源一样了。

人类破坏环境的作文二

现在科技发达了，地球上的资源也应此遭到了严重的破坏。

现在地球上有两大严重的污染：一是大气污染，其二是水污染。先说说汽车废气污染吧！

由于现在科学发达了，随便在那里都能看见大大小小的汽车，自然而然空中的汽车废气也在横行霸道了。地面上生长的花草树木由于不被人类珍惜也变得稀少了。汽车废气没被吸收到的，有的会直接危害人类让人类生病甚至死亡；有的还会升上天空，与什么有毒气体混合(这里面学过，所以情原谅。)然后变成有巨大破坏性二氧化硫，之后二氧化硫慢慢地升上臭氧层，把臭氧层变得非常稀薄，强烈的阳光猛烈的直射到地面上，使地球搞得生灵涂炭，鸡飞狗跳，大海干枯，到处都是干旱，到处都是乞讨的人，大的上一片哭爹喊娘的声音。

还有一大污染就是水污染：我们在小河里，江里，大海里。都可以看到垃圾的身影，这些垃圾不是天然的，也不是因为河水变质而形成的，是人类随意丢弃的。也正因为这小小的垃圾才污染了一条河，一条江，甚至大海。虽然人们修了一些污水处理厂，一些地方的污水被制理了，变得山清水秀，环境也涣然一新了。但是这还是治标不治本呀！就算现在污水被全部治理了，但是人类还是会旧戏重演的。

有一句名言是说： 先天下之忧而忧，后天下之乐而乐 可是我们是 先天下之乐而乐，后天下之忧而忧 呀！那些只顾贪图享乐的人啦！快性过来吧！我们身边的环境需要我们来保护！我们的地球妈妈需要我们共同爱戴！

人类破坏环境的作文三

在一个美丽的大森林里，生活着许多动物。大树伸出它的双臂就像一把巨大的伞，小动物们在树下乘凉、快乐的玩耍，真像生活在一个绿色的世界。可不久，一些人们来到森林里，开始砍伐树木，一棵棵的大树被砍到了。就这样，过了两个月，原来茂盛的森林成了光秃秃的一片。随后就刮来了一阵沙尘暴，由于树木被砍光了，无遮无掩，慢慢的就形成了一片沙漠。森林里的动物们没法生活，只好离开这里，四处流浪。

去年，小鸭子和爸爸妈妈出去游玩，今年，它兴冲冲的回来，可是一切都变样了，再也找不到自己的家了，也找不到熟悉的伙伴。

突然，小鸭子看见一只小乌龟，就问道：“我们的好朋友都到哪里去了？”小乌龟说：“没有了树木，成天刮风，没有干净的水喝，没有食物吃，大家都四处逃生去了。小狗的呼吸快要停止了，到医院抢救了一夜才脱离危险，医生说就是因为环境不好才造成的。小狗一家搬到很远的地方居住了。更可怕的是，小龙虾和小鱼因为环境污染去世了！”小鸭子哭着说：“原来河水也被污染了，那我住哪呀！”

小鸭子自言自语地说：人类真的好可怕呀！我希望人类不要再破坏环境了，还给我们一个美好的家园！

[人类破坏环境的作文 3篇

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

人类，让我们保护环境!保护环境对人类来说是不可忽视的。

如今，工厂的大烟囱正冒着浓浓的黑烟;马路上，各种车子排放着尾气;小河里都是垃圾，肮脏极了……

昨天，我到菜场去，又看到了塑料袋。这是一种白色污染。去年的时候，通过整治，得到了一段时间的好转，电视也播放过了。然而，现在人们又忘记了它的危害，虽然它使用起来方便，却造成了环境的污染。风一吹，到处飞扬起来。埋在泥土下吗?可是又不会腐烂。焚烧起来吗?又污染了空气。只有大家同心携手共同拒绝白色垃圾，我们的家园才能更洁净，生活更美好!

生活中，随地吐痰，乱扔垃圾等不文明现象还是无处不在。从小做起，从我做起!共同爱护人类的家园——地球。

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。

保护环境

目前环保还存在着许多问题。

最严重的问题就是空气、水和土壤的严重污染。

污染的空气对人类的健康十分有害。

污染的水引起疼病，造成死亡。

更有甚者，随着现代社会的迅速扩建，植被大大的减少。

为了保护环境，各国政府做了超多的工作。

采用了立法措施控制大气污染，保护森林资源和海洋资源，制止任何环境污染。

因此，在当今的环保中政府起着最重要的作用。

我的看法是，为了保护环境，政府应当采取更具体的措施。

首先，应当透过教育的方法使人们充分謒到环境保护的重要性。

第二，应更加努力把计划生育政策付诸实施，因为人口多就意味着污染严重。

最后，要严惩那些故意破坏环境者。

使他们破坏环境就是毁灭人类自我。

Some people believe that the Earth is beingharmed(damaged) by human activity. Others feel that human activitymakesthe Earth a better place to live. What is your opinion?Usespecific reasons and examples to supportyouranswer.

People have been living on the Earth for thousands of years.Humanactivity influences the Earth. Some people believe that theEarth isbeing harmed by human activity. Others feel that humanactivitymakes the Earth a better place to live. In my opinion, theearth isbeing damaged by human activity. There are manystatementssupporting my opinion.

Human activity has damaged natural environment and almostexaustednatural resources. Modern industry needs more and moreresources,including minerals, fuels and water. So we confront ofthe seriousproblems such as the lack of fuels and water.Ecological balance isdamaged because factories occupy many placeswhere animals andplants live. More and more buildings areconstructed and forestsbecome less and less. If we cannotrecognize these problems andsolve them soon, we would finally losethe environment suitable forour living.

An other serious problem is the green-house effect.Humanactivity decreases forests and increases the usage of fuels sothatthe gas of carbon dioxide is output more and more and there arenotenough plants to absorb it. The green-house effect is moreobviousand more sensible these years. Due to the effect, icebergsin thesouth polar and north polar melt and the sea level becomeshigherthan before. I am worried about the cities nearby the sea andhopescientists find an effective method to eliminate thegreen-houseeffect.

Although we have advanced machines and our life seemsmorecomfortable than before, we have less chances to approachnaturesand less spaces to act. The cities become bigger and if wewant tohave a picnic with our friends, we have to drive a longdistance tofind a natural place. In fact, the spaces of humanactivity arebeing damaged by the skyscrapers and factories.

From the above statements, we can conclude that humanactivitybrings the Earth many damages. Fortunately people haverecognizedthe point and I believe that the Earth will become abetter placeto live with our ceaseless efforts.

Last weekend, I wanted to swim in the river that I usually wen in the childhood. When I went there, I was shock. The river is no longer like before. It was full of rubbish. It seemed that the rubbish is from the villagers themselves. In order to put the rubbish nearer, they put all of them into the river. Not only the water is not clean any more, the river also smelt bad. I real touched. Why human and the environment couldn’t live harmonious? Long time ago, they could get along with each other. Why not now? People have to stop their behavior to harm the environment. Otherwise, it would cause destruction to both sides.

上周末，我想去我小时候经常去的那条河里游泳。当我去那里的时候，我很震惊。河水再也不像以前那样了。河里面到处都是垃圾。似乎这些垃圾都是村民丢的。为了不走那么远丢垃圾，他们把垃圾都丢到河里了。水不仅仅不干净还会散发出臭味。我真的触动了。为什么人类和环境不能和谐地相处呢？很久以前，他们可以好好相处。为什么现在不可以了呢？人们必须停止他们伤害环境的行为。否则，最后会是两败俱伤。

Water is used in homes, in farming, and in manufacturing. The water used by the people comes from oceans, lakes, rivers, and streams. Many water sources are becoming polluted.

People are throwing things into the water. Factories are dumping waste materials into the water. Cities are dumping sewage into the water. Some water sources have become so badly polluted that the water cannot be made fit to use.

Would you like to drink water that came from a source that had been so badly mistreatedNow is the time that we should take up our responsibility to protect our environment from being polluted.

(一)全球气候变暖

由于人口的增加和人类生产活动的规模越来越大，向大气释放的二氧化碳(CO2)、甲烷(CH4)、一氧化二氮(N2O)、氯氟碳化合物(CFC)、四氯化碳(CCl4)、一氧化碳(CO)等温室气体不断增加，导致大气的组成发生变化。大气质量受到影响，气候有逐渐变暖的趋势。由于全球气候变暖，将会对全球产生各种不同的影响，较高的温度可使极地冰川融化，海平面每10年将升高6厘米，因而将使一些海岸地区被淹没。全球变暖也可能影响到降雨和大气环流的变化，使气候反常，易造成旱涝灾害，这些都可能导致生态系统发生变化和破坏，全球气候变化将对人类生活产生一系列重大影响。

(二)臭氧层的耗损与破坏

在离地球表面10~50千米的大气平流层中集中了地球上90%的臭氧气体，在离地面25千米处臭氧浓度最大，形成了厚度约为3毫米的臭氧集中层，称为臭氧层。它能吸收太阳的紫外线，以保护地球上的生命免遭过量紫外线的伤害，并将能量贮存在上层大气，起到调节气候的作用。但臭氧层是一个很脆弱的大气层，如果进入一些破坏臭氧的气体，它们就会和臭氧发生化学作用，臭氧层就会遭到破坏。臭氧层被破坏，将使地面受到紫外线辐射的强度增加，给地球上的生命带来很大的危害。研究表明，紫外线辐射能破坏生物蛋白质和基因物质脱氧核糖核酸，造成细胞死亡;使人类皮肤癌发病率增高;伤害眼睛，导致白内障而使眼睛失明;抑制植物如大豆、瓜类、蔬菜等的生长，并穿透10米深的水层，杀死浮游生物和微生物，从而危及水中生物的食物链和自由氧的来源，影响生态平衡和水体的自净能力。

(三)生物多样性减少

《生物多样性公约》指出，生物多样性“是指所有来源的形形色色的生物体，这些来源包括陆地、海洋和其他水生生态系统及其所构成的生态综合体;它包括物种内部、物种之间和生态系统的多样性。”在漫长的生物进化过程中会产生一些新的物种，同时，随着生态环境条件的变化，也会使一些物种消失。所以说，生物多样性是在不断变化的。近百年来，由于人口的急剧增加和人类对资源的不合理开发，加之环境污染等原因，地球上的各种生物及其生态系统受到了极大的冲击，生物多样性也受到了很大的损害。有关学者估计，世界上每年至少有5万种生物物种灭绝，平均每天灭绝的物种达140个，估计到21世纪初，全世界野生生物的损失可达其总数的15%~30%。在中国，由于人口增长和经济发展的压力，对生物资源的不合理利用和破坏，生物多样性所遭受的损失也非常严重，大约已有200个物种已经灭绝;估计约有5000种植物在近年内已处于濒危状态，这些约占中国高等植物总数的20%;大约还有398种脊椎动物也处在濒危状态，约占中国脊椎动物总数的7.7%左右。因此，保护和拯救生物多样性以及这些生物赖以生存的生活条件，同样是摆在我们面前的重要任务。

(四)酸雨蔓延

酸雨是指大气降水中酸碱度(PH值)低于5.6的雨、雪或其他形式的降水。这是大气污染的一种表现。 酸雨对人类环境的影响是多方面的。酸雨降落到河流、湖泊中，会妨碍水中鱼、虾的成长，以致鱼虾减少或绝迹;酸雨还导致土壤酸化，破坏土壤的营养，使土壤贫瘠化，危害植物的生长，造成作物减产，危害森林的生长。此外，酸雨还腐蚀建筑材料，有关资料说明，近十几年来，酸雨地区的一些古迹特别是石刻、石雕或铜塑像的损坏超过以往百年以上，甚至千年以上。世界目前已有三大酸雨区。我国华南酸雨区是唯一尚未治理的。

(五)森林锐减

在今天的地球上，我们的绿色屏障——森林正以平均每年4000平方公里的速度消失。森林的减少使其涵养水源的功能受到破坏，造成了物种的减少和水土流失，对二氧化碳的吸收减少进而又加剧了温室效应。

(六)土地荒漠化

全球陆地面积占60%，其中沙漠和沙漠化面积29%。每年有600万公顷的土地变成沙漠。经济损失每年423亿美元。全球共有干旱、半干旱土地50亿公顷，其中33亿遭到荒漠化威胁。致使每年有600万公顷的农田、900万公顷的牧区失去生产力。人类文明的摇篮底格里斯河、幼发拉底河流域，已由沃土变成荒漠。中国的黄河流域，水土流失亦十分严重。

(七)大气污染

大气污染的主要因子为悬浮颗粒物、一氧化碳、臭氧、二氧化碳、氮氧化物、铅等。大气污染导致每年有30-70万人因烟尘污染提前死亡，2500万的儿童患慢性喉炎，400-700万的农村妇女儿童受害。

(八)水污染

水是我们日常最需要，也上接触最多的物质之一，然而就是水如今也成了危险品。

(九)海洋污染

人类活动使近海区的氮和磷增加50%-200%;过量营养物导致沿海藻类大量生长;波罗的海、北海、黑海、东中国海(东海)等出现赤潮。海洋污染导致赤潮频繁发生，破坏了红树林、珊瑚礁、海草，使近海鱼虾锐减，渔业损失惨重。

(十)危险性废物越境转移

危险性废物是指除放射性废物以外，具有化学活性或毒性、爆炸性、腐蚀性和其他对人类生存环境存在有害特性的废物。美国在资源保护与回收法中规定，所谓危险废物是指一种固体废物和几种固体的混合物，因其数量和浓度较高，可能造成或导致人类死亡，或引起严重的难以治愈疾病或致残的废物。

我是一条美丽的小鱼，我的眼睛水汪汪的，身上有着整齐的鱼鳞。我生活在一条清澈见底的小溪里，周围是连绵起伏的大山，一早，阳光闪耀，洒在我身上，我全身闪着金光，小溪也变成了一条闪着金光的溪。我们家世世代代都生活在这美丽的小溪里，过着自由自在的生活。

每天我醒来，就会和我的朋友们一起玩耍。刚出生不久的小鱼苗成群结队，用力地甩着尾巴，瞪着圆圆的眼睛，从我身边游过。最有趣的是小虾，他弯着腰，把身子缩起来，使劲一蹬，就像箭一样地从这边游到了那边。最懒的是小螃蟹，老是躲在石头底下，好不容易露出来头来，可吹了个小跑炮又缩了回去。晚上，我偶尔跃出水面，欣赏美丽的星空，天上有一条银河，小溪也变成了银河。

可是，好景不长。有一天，人们在小河边建起了工厂，黑色的、红色的、发臭的……液体，不断流进小溪，见多识广的乌龟爷爷说：“不好，不仅是那些臭水，人们把生活垃圾也扔了进来，五颜六色的塑料袋、用过的餐巾纸、泡沫……”好奇心最强的小螃蟹钻进塑料袋里，可再也出不来了，小鱼吃了一块泡沫，可第二天就白肚皮向上，再也没有动过。一天天过去，越来越多的小伙伴象他们样，小溪里没有了笑声，溪水不再清澈见底，我们只能无奈地离开家乡，人类，我恨你们！

水是生命之源，请你们住手，让小溪重回清澈见底，难道你们没看到吗？清澈见底的小溪没了，清洁的小河没了，小虾、小螃蟹、小鱼……也没了！我们都只有一个家——地球，所以请你们保护好我们共同的家园。