英语作文环境污染高中（合集20篇）

I have busy weekend.In Satday morning,I’m read books and do myhowewoke.In aftenoon,I’m lean my room.In evening,I’m watch TV and movies.In Sunday morning,I’m play basketbaal with my good fiend .

We are very happy.In aftenoon,I’m go to marketpiace buy some food.In evening,I’m go to concert.

This weekend,I’m very tird ,but I’m enjoy onerselees

Yesterday, my parents were not home. And I had to stay at home by myself for one day and one night. I was very happy at first, because there wouldnt be anyone criticizes my behavior. I can do whatever I want. But later I felt desperate. There was nobody cook for me, asked me to do things or criticized me. I felt empty and desperate as the house is only me. When the night fell, I was afraid. The computer games or the cartoons couldn’t attract my attention. I hate living alone.

昨天，我的父母不在家。我得自己一个人呆上一天一夜。我一开始很开心，因为没人会批评我的行为了。我可以做任何我想做的事。但后来我感到很郁闷。没人给我做饭，没人叫我做事情也没有人批评我。整个房子只有我一个人，我感到很空虚和郁闷。当夜幕降临的时候，我就开始很害怕了。电脑游戏或动画片都无法吸引我的注意。我讨厌一个人生活。

My school is a beautiful campus, you dont believe in? I take you to visit my school.

You see, walked into the door, and two rows of stand proudly welcome our arrival, it is like a soldier standing guard, guard our campus. Back is a beautiful flower, open be riotous with colour of flowers, very good and diligent bees in the above step honey; and a beautiful butterfly there is dancing in the air, very good! Bed is behind the teaching building, see the classroom desks and chairs placed in neat, but it is our indispensable faithful partner, every classmates upright sitting concentrate ones attention on class there, fall over each other to speak, always came the sound of reading, a bent on learning. The teaching building of the right there is a basketball court, teaching to the left of the building is a large playground, where there are a lot of students are playing; every Monday, all the students went to the playground to the raising of the national flag. Playground on the left is a green lawn, where you can play, play football,,,,,, can be fun. The lawn is surrounded by a stand gracefully erect poplars, they be conscientious and do ones best to stand there, as if to defend the national dongliangzhicai. In looking at the outside is walls, walls covered with ivy, in the fall, ivy leaves slowly turned red, very good-looking, is really a beautiful scenery line.

This is my school, I love my school.

保护我们的环境地球是我们的家园,我们必须照顾好它我们应该使减少污染,如我们所知大家在北美的垃圾进行1000公斤。大多数都是包装大部分垃圾变成土而不是塑料制品,塑料保持多年来它会污染我们的环境,所以我们不应该浪费我们应当做些事情回收利用。

Protect our enviorment The earth is our home,we must take care of it.We shoule make a less pollution as we know everybody in north America makes 1000 kilograms of the garbage everyday. Most of it is packaging Most of garbage turns into soil but not to plastic,plastic keeps for many years it will pollute our environment so we shouldn’t waste thing we should make some things for recycling .

How to improve network security

As time goes ongoing surfing on the Internet become more and more popular.It is a new phenomenon and sounds an alarm (for online security ).

Network security cover anti- virus network security and hacker protection . Together with the technology of Access Control redundant backup recovery and network security it makes an allround security system . Many companies devote to the information security technology and product research and development production and sales providing advanced network security solutions . Firewall just is an effective measure of network security .如何提高网络安全

随着时间的推移，上网冲浪变得越来越流行，这是一个新的现象，听起来是一个警钟(在线安全)。

网络安全覆盖防病毒、网络安全和黑客保护。结合访问控制技术、冗余备份恢复、网络安全，它使一个全面的安全系统。许多公司致力于信息安全技术和产品的研发、生产和销售，提供先进的网络安全解决方案。防火墙只是是网络安全的一种有效措施。

However mean your life is, meet it and live it; do not shun it and call it

hard names. It is not as bad as you are.

It looks poorest when you are richest. The fault-finder will find faults in

paradise. Love your life, poor as it is.

You may perhaps have some pleasant, thrilling, glorious hours, even in a

poor-house. The setting sun is reflected from the windows of the alms-house as

brightly as from the rich mans abode; the snow melts before its door as early

in the spring. I do not see but a quiet mind may live as contentedly there, and

have as cheering thoughts, as in a palace.

Now in some places of our country， a number of people have been cutting down the trees in the forests because they need wood and more farmland. The areas of forests are getting smaller and smaller. Some scientists say that there will be no vast forests in 20 or 30 years. It is really a terrible thing. Where the forests disappear， dust storms will occur occasionally. The weather will get hot and dry. The whole earth will become a big desert. A lot of plants and animals will disappear.Crops will not grow anywhere. Life will be difficult for everyone. The human beings will be punished for their forest-destroying activities.

Therefore， we should realize the importance of taking care of our forests. We should do our best to protect our living environment and keep our mountains green，the water clean， and the sky blue.

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

Environmental problems are as big as not for individual country or individual people to address。 In other word， we have reached the stage that environmental problems be solved for international view。 To what extent do you agree or disagree?

In recent years， many nations have bee more aware of the environmental issues each nation faces， such as air and water pollution。 The question is， are the environmental issues a national problem or an international problem? It is my belief that the environmental issues have grown to the point of being an international problem needing international cooperation to resolve。

Because of the differences in environmental policies， resources and technology， international cooperation could provide quicker results and have a greater impact on bringing resolution to environmental problems for nations of differing environmental policies and of lesser resources and technology。 By pooling international resources and technology to address the environmental problems， the disadvantaged nations are provided the assistance needed。 Otherwise their environmental conditions deteriorate ultimately affecting the resources and environment of the world as a whole。

One of the difficulities to an international resolution to environmental issues is the difference in individual nations view and policies toward environmental protection。 In order for international cooperation to occur and succeed， the nations of the world must submit themselved to international standards and supervision by an international mission elected by the participating nations of the world。 All members must agree to abide by the standards established。

The environmental issues facing each country are not unrelated to the well being of the rest of the world。 The impact is long term and international in scope。 Without international cooperation and agreement to address such environmental issues as glacial melting at the South Pole， depletion of the ozone layer， water pollution， air polution， etc。， the environmental conditions of the world will deteriorate to the detriment of every nation， not just those that ignore or lack the resources and technology to resolve their individual environmental problems。

As part of the same planet， it is the responsibility of each individual and nation to protect the global environment。 Only international cooperation will provide the timely solutions and the effectiveness needed to stop the deteriorating global environment。

[保护环境四级英语作文

尽管世界发展得更快，更好，地球上的资源越来越少。为了保护它们，必须做些什么。以下就是小编整理的怎样保护环境英语作文，一起来看看吧！ 篇一：怎样保护环境英语作文

The environmental protection is the most major problem which in the modern life the humanity faces. Must solve this problem must start from foundation. First, must massively propagandize, enhances peoples consciousness with understanding, strengthens the

environmental protection consciousness. Next, must carry on waste recovery use, reduces to forest-trees felling. Also must strengthen to white pollution processing, little uses the plastic product. Finally, must make improvement to clean aspect. Causes the citys appearance to be neater. For Earths tomorrow, we must start from the now diligently, will want the well local constable to protect the environment. To this us proposes as follows suggests: Implementation trash classification packed in bags. Like this not only can reduce the environmental sanitation workers work load, but also can even better basically arrive makes use of waste, to reduce the pollution, saves the resources. 篇二：怎样保护环境英语作文

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.

尽管世界发展得更快，更好，地球上的资源越来越少。为了保护它们，必须做些什么。

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.

节约用水。水是生命之源。没有水，就没有生命。所以，我们这样做是非常重要的。我们不仅要保护饮用水和停止污染，而且充分利用它。

庆幸的是,越来越多的人们已经意识到这种严重情况。许多国家已经通过了法律来阻止环境受到进一步的污染。人们正在努力想办法使地球保持清洁:他们对待废气、保护水资源和净化废水。可以肯定的是,控制人口的增加是一种最有效的方式。

然而,在未来将需要更多的努力赢得了战斗反对污染的法律控制污染,必须严格执行,而且最重要的是,在教学中应重视对人民的教育,使每个人都将显示他正在关注环保

A larger and larger part of society is expressing its concern about environmental protection. Active in their concern, teachers and students hold specific meetings to discuss environmental protection. Also, city planners take environmental problems into serious consideration. And, though reducing pollution can be expensive,

factories often take every possible measure to do their part. Many people are concerned and active because air and water pollution affects everyone and makes it difficult for cities to survive and businesses to make a profit.

一个越来越大的社会的一部分是表达他们的担忧关于环境保护的。活跃在他们所关注的,教师和学生举行特别的会议来讨论环保。同时,城市规划者们把环境问题进行认真的考虑。还有,尽管减少污染可能会很昂贵,生产厂商经常会采取一切可行的措施来履行自己的职责。许多人都关心和积极的,因为空气和水的污染影响每个人都大打折扣,使得城市生存和企业盈利。

[怎样保护环境英语作文2篇

Its Sunday today. I got up early and did my homework on the table. All of a

sudden I remembered the mothers day, a picture of my mind, remembering a past

thing that moved me.

Thats the case. After coming home from school that afternoon, my mother came

back. I found that my mother was very tired, his eyes were squinting, and I

yawned. So she sent me to do my homework at home. But I felt very sad to see my

mother working so hard, so I decided to share the housework for my mother. I

began to pick up the stuff in my home, first fold the newspaper, and then the

glass was cleaned.

I put the glass on the pot filled with water, and then picked up the cloth, a

brush up. I found a little dirty in a cup, and I took some detergent to wash it.

Suddenly, the cup from the hand slipped, piercing sound startled me. I hastened

to pick up the pieces of glass on the floor. At this time, I found that my

mother was standing in front of me, and she said, "dont pick up the pieces with

your hands. Let me come." I stood up and bowed my head embarrassed and said,

"Im sorry, mom, Im too careless." I thought: this must be closed. Mother

walked over and touched my head and said, "kid, dont frighten you?" Let mommy

pack up, you go out and watch TV. " Mothers words are very gentle, but make me

more difficult, unwittingly I cry.

Looking back on this, I felt very warm. It told me that maternal love is

selfless and great, and I want to repay my mother on Mothers day.

ne possible version:

Dear Mike，

Thank you very much for your concern. Last months several places in Beijing were blanketed with thick yellow fog. Everything around disappeared from oursight. Some highways were closed. Traffic jams were commonly seen in the streets. Many people, especially children and seniors, even found it difficult to breathe. As a result, local hospitals were crowded with people who had problems with their noses and lungs. Part of the cause was the dry weather, but the severely damaged environment contributed a lot to this nightmare. Personally I didn’t get any health problems in the haze because I stayed mostly indoors.But to make a significant change we really have to do more to protect our environment. To live a better life we have to push on with the economy, but it wound be meaningless if we have to achieve it at the cost of our breathing air.

Regards!

Yours，Li Hua

If you ask someone that do they often go to library, I think they will

answer you with no, the reason I am saying this because of the development of

ebook. Many years ago, without computer, the only way to check the information

that you need is from paper books, it means you need to go to the book shop or

the library, while with the development of the Internet, people have access to

the information very easily, you only need to click on the computer, then what

you look for is in front of you. Ebook is a very popular form for reading,

people can find what they want to read in the computer, like the novel story,

then download. It is so convenient and fast, it can save a lot of time, we don’t

need to go to the library if we are busy. Ebook is a good way for reading.

参考翻译

如果你问一些人他们是否经常去图书馆，我觉得他们会回答不，我这样说的理由是因为电子书的发展。很多年前没有电脑，你想要核查你所需要的信息，唯一的方法就是去找纸质书，这意味着你需要去书店或者图书馆，然而随着电脑的发展，人们能很轻易得到信息，你只需要点击电脑，然后你所寻找的就会在你眼前。电子书是一种很受欢迎的阅读方式，人们可以在电脑上找到他们想要阅读的，比如小说，然后下载。这很方便快捷，能够省时，我们不需要去图书馆，如果我们很忙的话。电子书是阅读的好方式。

my sister likes always goes swimming in last summer she was very unlucky.

she put her clothes in an old was hard to lock she went to she played happily in the swimming hours later,she went out the water and took out the key to the soon she found she cant open it at spent about half an hour to open it but nothing course she couldnt wear a swimming suit and go was worry about it.

at last she was kicked the it opened!

Recently, we often show that shopping online is better than in store, but

is this really the case? Actually, there is no consensus of opinions among

people as to the view of shopping online is better than traditional shopping.

Some people consider that online shopping will replace the mall shopping, stores

will disappear in the future, while others argue that stores would unlikely to

be disappeared, it has its own advantages.

Most people shopping online because it is very convenient, there is no need

to go out, just click the mouse gently, they can buy the goods they want. In

addition, goods online are cheaper than entity shop that buyers can save a lot

of money. But even the coin has two sides. Online shopping also has advantages

and disadvantages. In recent years, we see a lot of news about online cheating,

and many buyers complain about poor quality of the goods, which is different

with the description.

However, the situation above is rare in traditional shopping store, because

the guest can communicate with the seller face to face. Buyers can also see

goods intuitively. But the traditional shopping does not convenience as well as

online shopping, for example, if people meet a traffic jam on the way to the

shopping which will affect the happy mood of shopping.

导语：关于环境保护的英语作文怎么写?以下是小编精心为大家整理的有关关于环境保护的英语作文，希望对大家有所帮助，欢迎阅读。 关于环境保护的英语作文1

There are more high-rise apartment buildings built in the city we live to accommodate more city dwellers. To make room for these constructions, a large number of trees are cut down. We have to be constantly afflicted with the noise and air pollution everyday. Obviously, we are paying the cost of the development.

Even the most developed countries are troubled with environmental issues. In fact, the more developed the country is, the severer the problem has. To maintain our economy prosperity and stability, we have to be in full operations and spread the workload in industry fields. As a result, we may seek temporary economic development at the expense of the environment and resources. The consumption of natural resources has been a big problem. It is admitted that the world economy is booming with the satisfaction of environment. However, we have made a blunder by equating material prosperity with better living standards.

A better life should be a life closer to nature. The modern lifestyle is best characterized by hectic, mass-productive and seemingly comfortable. But actually something originally natural and invaluable has been lost. We are no longer able to breathe fresh air, take a walk in the woods or even look at the stars in the sky as the stars are obscured by smog and artificial lights.

Hence, we need to curb the quick tempo of life in order to protect our environment and ironically improve our life. Science and technology thus should be employed to create a harmonious relationship between mankind and nature. A better environment means much more than material comforts. Besides, by slowing down a little bit, our life would turn out to be less stressful. To have a better life, we need take effective measures right now.

The current environment damage stems from the misguided conception that material wealth is equivalent to a better life. In reality, environmental protection serves as the catalyst of our very pursuit of better life rather than a deterrent 关于环境保护的英语作文2

Many people believe that we have developed into a “throw-away society” which is filling with plastic bags and rubbish. What do you think?

Wind blows up bags higher and higher in the sky. It is a scary thought that some day the earth will turn into a huge garbage land. Wastes, if not treated properly, will make our life a living nightmare.

The environmental issue is getting worse almost every day in cities with very large population. As is often the case, city development outpaces environmental protection. People consume great amount of natural resources and produce wastes. To effectively address such problems, cities need to spend big money. In addition, they need to call to the attention of people to become more environmentally responsible.

Many people are becoming less responsible and easily influenced by bad behaviors. “Why should I care while others shouldn’t?” Such idea makes some people only concern with places where they live and work. Furthermore, people sometimes even purposely litter for revenge to other people.

Although media promotes environmental awareness, good people are often snubbed as posers who try to set up a superior image in real life. Consequently, they are intimated of receiving negative comments for doing the right thing. Wrong as it is, such phenomenon is widespread especially among youngsters and people with low income and little education.

However, our society is waging a campaign against environmental pollution. People learn the harms of un-degradable lunch boxes and other polluting wastes. Laws in many countries prohibit or limit excessive use of polluting bags. Companies are continually replacing the old materials with more environmental friendly and recyclable kinds. Scientists have developed more effective technologies in waste treatment. As time goes by, more and more people put high priority on the protection of environment for a healthier life.

To sum up, people produce huge amount of garbage and the environment is seriously polluted because of lack of financial resources, sense of responsibility, or efforts. But the world will not turn into a “throw away” society if people put in sufficient efforts to protect our environment

Hello, everyone. I’m am a student in No.1 Middle School. I’m very proud that I have been chosen to speak to you all today.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 is poring dirty air in the sky , the population is increasing faster and faster ,resources is getting less and less…etc. Not only does it affect our lives and health, it also has a great affection in the future.

The first fact I worry about is noise pollution. People can"t sleep well if there is too much noise. That"s why so many people prefer to live in the countryside rather than live in the noisy city. I suggest all the factories and cars shouldn"t make terrible noises. If they make terrible noise that isn"t allowed, they will be fined, and we can also produce the cars which can"t make terrible noise.

The other pollution is rubbish pollution. If everyone makes so much rubbish, one day we may live in a world filled with rubbish. Some people throw the waste paper about. I suggest rubbish should be put into different kinds of dustbins or paper bags.

[高中保护环境的英语作文

In recent years, we can clearly feel the environment around us is more and moreobvious pollution, environmental safety problems have been very serious. Because of our previous policy is heavy economic development, light environmental protection,resulting in environmental pollution, ecological damage is very serious, mainly manifested in the following aspects:

近几年来，我们可以明显的感觉到我们身边的环境污染愈显明显，环境安全问题已十分严重。因为我国以往的政策方针是重经济发展，轻环境保护，所以造成环境污染、生态破坏十分严重，主要表现为以下几个方面：

In the atmosphere of security, since the middle of the twentieth Century, industry andthe rapid development of transportation, causing air pollution is increasing. Air pollutionis harmful to human health, but also affect the growth of plants and animals,destruction of building materials, serious when can alter the earths climate. According to the survey, China each year from air pollution and economic losses amounted to about 100000000000 yuan.

在大气安全方面，20世纪中叶以来，工业和交通运输迅速发展，造成了大气污染的日益加重。大气污染既危害人体健康，又影响动植物的生长，破坏建筑材料，严重时会改变地球的气候。据调查显示，我国每年因大气污染造成的经济损失高达1000多亿元。

In the water security, water pollution in China is very serious, widespread around thedrinking water safety problems, a direct threat to human and animal survival. In recent years, although the investment fund management a lot of Huaihe and other waters, but the effect is not obvious, the overall situation is still deteriorating.

在水安全方面，我国水污染问题十分严重，各地普遍存在着饮用水安全问题，直接威胁到人畜生存。近几年虽然投入大量的资金治理淮河等水域，但效果并不明显，整体情况仍在恶化。

In a biological safety, the invasion of alien species mass, a serious threat to thebiological diversity of china. In fact, the blind introduction of foreign species, damage the environment balance, serious and even lead to disastrous consequences. At the same time, because of the destruction of the ecological environment and wildlifehunting, biological extinction rate is rapidly increasing.

在生物安全方面，大规模的外来物种入侵，严重威胁了我国的生物多样性。事实证明，盲目引进外来物种，会破坏环境平衡，严重时甚至带来灾难性的后果。同时，由于生态环境的破坏和对野生动植物的滥捕滥猎，生物消亡的速度正在迅速增加。

In the security of land, the land desertification and soil erosion is very serious. In addition, the cultivated land quality in China decreased very rapidly, at the same time,because of the serious land pollution phenomenon caused by excessive use ofpesticides, is directly related to food safety problem of residents in our country. China is a developing country, in the face of environmental pollution pressure not only fromChina itself, and applied pressure from some developed countries abroad. Therefore the development of economy and environment is a need for us to issue long face, and it also need to rely on the participation of each and every one of us.

在土地安全方面，我国土地荒漠化和水土流失的情况已十分严重。另外，我国耕地质量下降非常迅速，同时由于过度使用农药等造成的严重的耕地污染现象，直接关系到我国居民的食品安全问题。 我国是一个发展中大国，面对环境污染方面的压力不仅来自国内本身，还有来自国外一些发达国家施加的压力。因此发展经济和治理环境是一个需要我们长久面对的问题，而这也需要靠我们每个人的共同参与。

我的爸爸是一个十足的钓鱼爱好者，他十分迷恋这项运动，可以称得上“酷爱”了。而我家旁边就有一条河，爸爸他经常去岸边钓鱼。

今天，爸爸的“钓鱼瘾”又发作了。这不，他正准备鱼食呢。我凑过去看爸爸将这一团一团、米棕色、散发着怪味的鱼食揉成一长条放进塑料盒子里，拿着工具去河边了。我也想去“看热闹”就搬了张小椅子跟在爸爸后面。

来到平时我并不注意的小河边，这里的场景吓了我一跳：水草布满了整个河面，隐隐约约能看见的河水已经开始发黑发臭，岸边堆积着许多垃圾，对岸还有人在往河里倒污水。我本来准备坐下的，一见这状况，连忙往后退了几步。爸爸也不敢坐得离河太近，他找了个距离河一米左右的地方坐了下来，熟练地拿出鱼竿套上鱼线和浮钩，在钩尖上放上鱼食，然后甩出去，我们便开始了耐心的等待。不一会儿浮钩开始下沉了，我们的心情随之兴奋起来。这时，老爸猛地一甩，一提，一个黑色的东西被拉出水面，爸爸迅速将鱼线绕了起来，把这个东西扯近一看：原来是一只装满果皮垃圾的黑塑料袋。我们失望地将它扔进了垃圾桶，爸爸无奈地摇了摇头。接着又钓起了一条死鱼和一只破鞋子。最后我们实在受不了这臭气熏天的气味儿了，只好扫兴而归，而河水也变得更黑更臭了......

爸爸告诉我：过去，这条河是清澈见底、鱼虾成群、水草更是少见的。大家每天都可以采到许多的水葫芦和菱角。而我们这儿产出的龙虾都是上好的，远近有名。鱼又鲜又肥，小螃蟹也有很多，如果你运气好的话还有可能捕到大螃蟹呢！可是现在这一切都成为了一个回忆，一个幻想，一个梦……这是为什么呢？答案很简单，那就是我们人类肆虐地往河里倒垃圾、倒污水。我们没有理由去推卸这个责任。

现在我真想说：适可而止吧，人类！不要再破坏我们的生存环境了，不要再残害我们已经伤痕累累的地球妈妈了！否则将来吃苦果的还是我们人类啊！

[环境污染作文：钓鱼记

Oceans becoming more acidicThe worlds oceans are slowly getting more acidic, say scientists.The researchers from California say the change is taking place in response to higher levels of carbon dioxide in the atmosphere.The lowering of the waters pH value is not great at the moment but could pose a serious threat to current marine life if it continues, they warn.Ken Caldeira and Michael Wickett, from the Lawrence Livermore National Laboratory, report their concerns in the journal Nature.Increasing use of fossil fuels means more carbon dioxide is going into the air, and most of it will eventually be absorbed by seawater.

Once in the water, it reacts to form carbonic acid.Scientists believe that the oceans have already become slightly more acidic over the last century.But these researchers have tried to predict what will happen in the future by combining what we know about the history of the oceans with computer models of climate change."This level of acidity will get much more extreme in the future if we continue releasing CO2 into the atmosphere," said Dr Caldeira."And we predicted amounts of future acidity that exceed anything we saw over the last several hundred million years, apart from perhaps after rare catastrophic events such as asteroid impacts."If carbon dioxide release continues unabated, ocean pH could be reduced by as much as 0.77 units, the authors warn.It is not absolutely clear what that means for marine life, however.

Most organisms live near the surface, where the greatest pH change would be expected to occur, but deep-ocean lifeforms may be more sensitive to pH changes.Coral reefs and other organisms whose skeletons or shells contain calcium carbonate may be particularly affected, the team speculate. They could find it much more difficult to build these structures in water with a lower pH.In recent years some people have suggested deliberately storing carbon dioxide from power stations in the deep ocean as a way of curbing global warming.But Dr Caldeira said that such a strategy should now be re-considered."Previously, most experts had looked at ocean absorption of carbon dioxide as a good thing - because in releasing CO2 into the atmosphere we warm the planet; and when CO2 is absorbed by the ocean, it reduces the amount of greenhouse warming.

What’s more, we should realize that only from our planet can we obtain our sheltering, food, cloth and so forth.

Over the past years, floods, droughts, landslides, and dust-storms have frequented our planet, the only habitat of human beings. Several days ago, tsunami(海啸) has swept the Southeast Asia, which has caused enormous damage. All these have sounded an alarm to human beings.

The destruction which is caused by human beings has aroused people’s concern all over the world. If we pay no heed to the present destructive human activities, our planet will become of tomb instead of cozy home. What’s more, we should realize that only from our planet can we obtain our sheltering, food, cloth and so forth.

Counter-measures must be taken to curb the destruction caused by human beings. Most importantly, laws must be established to punish those who are involved in destructive conducts.

[环境变化英语作文