保护水资源的作文英语经典20篇
口语考试介绍自己的时候要给老师一种侃侃而谈的感觉,如果死记硬背,很可能在高度紧张的情况下忘记,而且即使想起来,也会让老师看出你在背。接下来小编搜集了保护水资源的作文英语,仅供大家参考,希望帮助到大家。
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711篇1:保护环境英语作文高一80词
全文共 776 字
+ 加入清单Environmental problems are being more and more serious all over the world。
For example, cars have made the air unhealthy for people to breathe and
poisonous gas is given off by factories。 Trees on the hills have been cut down
and waste water is being poured continuously into rivers。Furthermore, wherever
we go today, we can find rubbish carelessly disposed。 Pollution is, in fact,
threatening our existence。
The earth is our home and we have the duty to take care of it for ourselves
and for our later generations。 Fortunately, more and more people have realized
these problems。 Measures have been taken to cope with these problems by the
government。 Laws have been passed to stop pollution。 I hope the problem will be
solved in the near future and our home will bee better and better。
篇2:环境保护大学英语作文
全文共 663 字
+ 加入清单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.
篇3:高考英语写作万能模版之环境保护题材句
全文共 949 字
+ 加入清单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。
篇4:海洋保护英语作文
全文共 1977 字
+ 加入清单"Bumper harvest, bumper harvest!"!" Cried one of the fishermen, happily jumping up like a child. After a while, the full cabin fish alive and kicking, calm sea filled with coming from all sides of the fishermens laughter.........
Now, like this "fish and shrimp full cabin" scene has been very rare. In todays market, is the most common fish pound at least to dozens of yuan, more serious pollution of the ocean, the ocean resources gradually dried up, seafood production, prices rise, it illustrates this point?
In the ocean of natural calamities and man-made misfortunes emerge in an endless stream today, human pollution is often not from the original intention, but it is caused by the unexpected effect. The British Petroleum oil, because the drilling platform explosion, caused by the oil spill in the Gulf of Mexico, to 9900 square kilometers of sea water is seriously polluted, so that tens of thousands of seabirds soaked in oil to move, die in hunger and misery, makes countless fish poisoning death; and the Japanese earthquake and tsunami triggered a nuclear leak the marine pollution is more serious......
The sea is so vast that it is because the rivers and streams flow into the Yangtze River and then run into the sea. If we do not solve the pollution problem from the source, then no matter how people clean up the sea, there will always be sewage flowing into the sea, and all the efforts will be futile. Now, streams and streams are often seriously polluted, or they become places where people dump rubbish or are loaded with pesticide cans. Finding a clear stream in an inhabited area can be very difficult today!
In any case, the protection of the oceans can not be achieved by individual forces, and the protection of the oceans depends on the joint efforts of all mankind. I do not want one day in the future, our descendants can only imagine the image of the vast and wide sea.
This is not only the wish of a pupil, but also the wish of all mankind, isnt it?
篇5:二年级关于保护环境的英语作文
全文共 1090 字
+ 加入清单The classmates, you might think a little convenience bag, no pollution, this you are wrong. A small convenience bag can also be water pollution.
In every household in baicheng almost a year in more than 100 convenience bag. If only more than 100 households in baicheng, convenient to use every year about ten thousand bags. We think about lets light has 100 households in baicheng? At school, I have to take a fruit every day. But the fruit of the outer packing is a small plastic bags which convenience bag to the environment pollution is very serious. And we generally just one-time use it. Used the bag into the junkyard. But most have been put into our nature.
I want people to use less some convenience bag to bag and reduce the white pollution, please take good care of our home, save the earth mother to live!
同学们,你们可能都认为一个小小的方便袋,没有什么污染,这你们可就错了。一个再小的方便袋也能污染水源。
在白城市每户人家差不多一年就能用100多个方便袋。白城市要是只有100多户人家,大约每年都要使用一万个方便袋。大家想想咱们白城市光有100户人家吗?在学校上课时,我每天都要随身带一种水果。可是水果的外包装是一种塑料做的小食品袋这种方便袋对环境的污染十分严重。并且我们一般只会一次性使用它。用过的袋子就进了废品收购站。但大部分却被弃入了我们的大自然当中。
我希望人们少用一些方便袋改用一些布袋,减少一些白色污染,请大家爱护我们的家园,救救生存的地球母亲吧!
篇6:保护环境为题目的英语作文
全文共 485 字
+ 加入清单ladies and gentlemen, i want to say something about trees. as we know now trees are very important to human beings. first of all, they benefit our health.
they send out oxygen for us to breathe. we cant live without trees.secondly, trees can beautify our environment.as trees are so important, we must do our best to protect them. we must enforce the tree protection laws. we must plant as many trees as possible.only in this way can we live happily in the beautiful world.
篇7:节约水资源保护水生态
全文共 1032 字
+ 加入清单保护我们的家园,是我们每个人应出的一份力量,现在的地球失去了生态平衡,许多地方遭到了破坏。以前的地球,天蓝蓝的,草绿绿的,海清清的。动物们在这里快乐的生活。这是多么幸福和美满啊!但是我们却破坏了它,到处污染,使许多动物失去了家园,遭到了灭绝。
水是我们生活中不可缺少的东西,现在有许多国家严重缺水,比如:巴西、俄罗斯、加拿大、中国、美国、印度尼西亚、印度、哥伦比亚、刚果等等。据统计一个人一生大约要喝51000升水,这是多么庞大的数字啊!而地球上的淡水资源仅占地球总水量的2%左右,可被人类利用的淡水总量只占地球上总水量的十万分之三,占淡水总蓄量的0。34%。目前,世界上已有超过一半的陆地面积、遍及一百多个国家和地区缺水,二十亿人饮水困难。而人类正以每15年增加1倍的淡水需求消耗着水资源。到目前为止,人类淡水消费量已占全世界可用淡水的54%。据世界卫生组织调查,世界上70%的人喝不到安全卫生的饮用水。现在,每年有1500万5岁以下儿童死亡,死亡原因大多与饮用水有关。据联合国统计,世界上每天有25万人由于饮用水而得病或由于缺水而死亡。这是多么可怕的数字啊!
水污染不但危机人类,也给渔业带来了巨大损失。严重使鱼虾死亡,还干扰鱼类繁殖,渔产量和质量大大下降。污水还污染农田和农作物,使农业减产。水污染还造成其他环境的下降,影响人们的游览,娱乐和休养。
水不仅是生命之源,对人类极其重要,而污染又是这样厉害。因此我们更应该预防和保护好水资源,合理并利用好水。政府为此也展开了一些保护水源的措施,例如:通过兴修大中小型水利工程,进行南水北调和区域调控,水库蓄放季节时空调控等水利工程措施,对水资源进行跨区域和跨时空的科学调配,并高效利用;北方沿海城市大力发展海水利用,积极利用海水替代淡水资源;推广节水的耕作技术,如流灌溉为滴灌、喷灌,并种植耐旱农作物以减少灌溉;工业污水治理,循环利用“第二水资源”;大力推广节水措施和宣传力度,制定合理水价以提高居民的节水意识,建立节水型社会等等。
我们也要保护资源,我们可以用淘米水洗菜,再用清水清洗,不仅节约了水,还有效地清除了蔬菜上的残存农药;洗衣水洗拖帕、帚地板、再冲厕所;大、小便后冲洗厕所,尽量不开大水管冲洗,而充分利用使用过的“脏水”;夏天给室内外地面洒水降温,尽量不用清水,而用洗衣之后的洗衣水;自行车、家用小轿车清洁时,不用水冲,改用湿布擦,太脏的地方,也宜用洗衣物过后的余水冲洗……
我们一定要保护水,保护我们的家园!
篇8:保护水资源
全文共 445 字
+ 加入清单尊敬的环保局局长:
运河,是第一个我县运输粮食的河流。当时,运河水清澈,有时还有一些鱼群呢!可现在呢?看一下我们的运河,与原来的,真是两个模样。
以往运河水清澈见底,现在,运河水浑黑不清;以往运河中成群小鱼小虾,现在,运河中没有一切生物;以往运河水气息清爽,现在,难闻的气息从运河中随之而来;以往运河旁树木新绿。现在,运河旁的绿色植物被因受运河污染的影响大批减少。
所以,以我认为,造成运河变样的主要关系在于人为关系:那些路边的小摊子把垃圾都往运河里倒,还有运河旁的工厂旁出的废水全部都被排到运河中。看到这些情况,我的心里充满了伤痛。为什么运河会得到如此大的污染?我急切地希望你们能采纳我的几点建议:
1、贴出许多条关于保护运河的环境标语,大力推动保护运河的行动措施,从而让那些不注意保护环境的人醒悟起来。
2、派出大型施工机去展开对运河保护的方案。
3、制止工厂再往运河里排放污水。
在此,我真切地祝愿保护运河工程的马上开始和顺利完成!我坚信,如果我们群众和环保局一同努力,再肮脏的运河也能重获新生的!
篇9:英语保护环境
全文共 595 字
+ 加入清单As time goes by, man is making the earth sick. People cut down too many trees and leave rubbish everywhere. Factories let out their waste without doing anything to it . This has caused some serious problems. Such as the land is sandy, the river is dirty, the air is less clean, even the temperature of the earth is rising. What should we do to save the earth ? My suggestion is that we should plant more trees, put rubbish into dusbins and stop factories (from)pouring waste directly into the air or rivers. In all, we have only one earth, we should do our best to protect it, or we will regret.
篇10:珍惜水资源英语作文
全文共 1865 字
+ 加入清单Water is the source of life for people, something that is necessary for the growth of all things. Water, everywhere, home, nature, and we always think it does not matter, some water! Waste is not how it will be. But you are wrong, the water has been wasted by you.
When we go to the hotel to eat, whether to wash their hands found a taps did not shut, there are ticking water, then, how do you do? If nothing had happened, or to save this dripping and go up and turn off? If you close, then you save some water, but if you did not close, you know whether you have a small move, and how much water wasted. Maybe you wasted very little, but how many people in the world at this time like you, so that there will be more water to go.
On the sixth grade, the moral teacher out of a question, the worlds most lack of resources, I and students filled with confidence in the water. And this is wrong, we puzzled, the teacher replied: "is fresh water." We suddenly realized. This is right, the most flawless water, there are numerous water in the sea, and it is not fresh water.
There is an ad on the TV, a fax machine constantly in the delivery of paper, and finally came out a lot of wood fragments. How much paper we waste, paper is made of trees, even if each one, half of the waste, that the world people and how much waste it? Wasted paper is cut off hundreds of millions of trees? If each person to save some, to eliminate waste, then there are hundreds of millions of trees were saved?
We are always looking at other people wasting water, paper, criticizing others, and whether we think of ourselves. Do not you waste yourself? So, save it, in order to keep the trees long, so that the water of life stay in nature. Together to promote conservation, call the people, save every drop of water, every piece of paper, so that the world more than a tree, more than a river!
篇11:保护熊猫的英语作文范文
全文共 2153 字
+ 加入清单The national level protection animal giant panda, have you ever seen giant pandas? Come and see! The following is a lovely giant panda, see how delicious it eats! The smile is so lovely.
You said, why so little panda, it is because of the destruction of the human disorderly cut down trees, dont take care of flowers and plants, destruction of the atmosphere, to lead to a drop in the panda, so we have to take care of the panda, the giant panda is herbivorous animals know, likes eating bamboo, but not as the giant pandas in the zoo keepers to feed their fruit. Wild panda anecdotes: in recent years, scientists found hidden cameras, male wild pandas left a breath marks on a tree, will lift a leg, like a male dog, and then the urine to the heights of the tree and. The higher the urine, the higher the social status of the male giant panda. Good play! Just like a dog! This is fun. Ax mountain in north of the city, we established a lush bamboo sea and the forest, form different from downtown chengdu "microclimate", in 1987, formally completed, now has developed into a specialized in endangered wildlife research and breeding, protection of education and education tourism, a nonprofit organization.
Do you know how pandas digest bamboo? Researchers have found that the giant pandas digestive tract is short and simple, and there is no such thing as a long, plant-eating animal with a thin gut and a complex stomach or a developed cecum. In addition, the giant pandas genome sequences announced in 2009, after they found the giant panda to the lack of some help in the digestive tract herbivores digest cellulose and hemicellulose (they are the main components of the fibrous plant diet) enzymes. This is confusing for researchers, and how does the lack of these necessary conditions digest bamboo?
Researchers use of gene sequencing technology, analysis of more than 5000 ribosomal RNA sequences, eventually in the giant panda, found a variety of digestive tract bacteria and some microbes are very similar to grazing animals. These help animals digest cellulose in their bodies, and seven of them are unique to the pandas digestive tract. Bye bye!
篇12:水资源保护节作文350字
全文共 355 字
+ 加入清单一天夜晚,我在长江边散步,漫步在“南京眼”这座宏伟的大桥上,正欣赏着长江美景,突然发现江岸上有一些“白色垃圾”,长江中时而也会飘来一个个垃圾,来来往往的行人那么多,而谁也没有停下脚步,去把岸边的“白色垃圾”捡走。
如今,有很多人都不注意环保,把一些垃圾随意地扔在江边,有些工厂也把剩余的化学物质和工业废水一齐排入江中,长江里的水变得不再清澈,而是非常浑浊,水里的鱼也大批大批的死去。要是人们再不注意环保,过不了几十年,长江就要变成一潭死水了。我多么想设立一个“水资源环保节”呀!
“水资源环保节”的主要活动是:政府多派一些保洁船,水上飞机去清理江面。中小学生由老师带领,去江边捡垃圾。
大家都要注意环保,把地球上仅剩的淡水资源保护起来,让江水变得更加清澈。还要在江中建立一些保护区,保护一些快要灭绝的水生动物、植物。
篇13:保护环境珍惜水资源
全文共 322 字
+ 加入清单早上,我飞快地刷牙、洗脸、吃饭。很快便来到了学校。活动开始了,一路上,我们安安静静的走着。汪藜君问我:哎!目的地在哪儿?我说:估计在洪泽湖度假村。一会儿,到了公路上,咦!为啥老师带我们走小路?我心里想:可能是怕公路上车多危险。啊!一个很陡很陡的坡儿出现在眼前。我费了九牛二虎之力才爬过去。
啊!终点到了。我们看到了自来水厂的取水口。然后老师又带我们来到了洪泽湖度假村。我兴奋极了,似乎一蹦三尺高。进去之后我来到一个池子边,看见许多蛤蟆,心想这不会是食品吧?咦!怎么有雷鸣声?原来是同学们在玩火炮呀!大家玩的都很快乐。
通过这次活动,我知道了中国是一个缺水的国家。水是生命之源。我们一定要节约用水。
篇14:节约水资源保护水生态
全文共 385 字
+ 加入清单今天,我看到了一篇《明天,我们还有水么?》的文章,里面介绍了目前全球缺水的情况。其中,我国是全球十三个最缺水的国家之一,全国600多个城市里面有380个城市缺水,128个城市严重缺水。所有的这一切都是因为气候变暖造成的。
目前,地球上可饮用的水只有百人之三了,这个数字真是触目惊心阿!我想:如果有一天地球上没有了干净的水,那我们该怎么办啊?人只吃食物只能活三天,但如果只喝水的话能活一个星期,如果真的有一天地球上没有了水,那该有多悲哀啊!我说:“从现在起,就要保护水资源,节省干净水。”比如:冲厕所、拖地等事情可以用洗衣服、洗脸之类的水,这样每个人、每个家庭、每个单位、每个学校、每个工厂都这样做,全国每天就能节约好几百万吨水啊!
我读了这篇文章,很受启迪。晚上洗澡时,我把浴室的下水拧紧,把洗澡的水储存起来,足够明天家里冲厕所和拖地用了,这样节约用水,就可以保护水资源了。
篇15:保护环境的英语作文
全文共 1399 字
+ 加入清单Protection of the Environment
Once man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed to be unlimited.
Today things are different. The world has become too crowded. We are using up our natural resources,and polluting our environment with dangerous chemicals. If we continue to do this, human life on earth will not survive.
We realize that if too many fish are taken from the sea, there will soon be none left. Yet,with modern fishing methods, more and more fish are caught.We know that if too many trees are cut down, forests will disappear. Yet, we continue to use powerful machines to cut down more and more trees. We see that if rivers are polluted with waste products, we will die. Yet, waste products are
still put into rivers.
We know that if the population continues to rise at the present rate, in a few years, there wont be enough food.What can we do to solve these problems?
If we eat more vegetables and less meat, there will be more food available. Land for crops feeds five times more people than land where animals are kept.
Our natural resources will last longer if we learn to recycie them.
The world population will not rise so quickly if people use modern methods of birth control.
Finally, if we educate people to think about the problems we shall have a better and cleaner planet in the future.
篇16:保护环境的小学英语
全文共 1217 字
+ 加入清单Remember last years summer vacation, my father and I went for a walk EHu edge, a way, Im kind of shouted thirsty, so my father on the side of the road store bought me a Popsicle. I ate and go, soon finished eating, carelessly threw the ice sticks into EHu. Dad saw, reminded me immediately; "Coco, cant litter oh! If everyone like you to throw garbage in the lake, the beautiful EHu lake becomes waste." Im ashamed of say: "know, next time I must not litter." Dad smiled and stroked my head and said: "the earth is our home, we should protect it, cherish it, let the sky bluer, the water cleaner, the grass is greener." I naughty to say: "oh, that is, everybody has said, the city is my home, clean environment depends on everybody. I understand." From then on, I no longer throw garbage.
I want to take care of the environment is closely related to everyone, so lets start from everyone!
今天,我们读了很多关于保护环境的小短文。我想起曾经在我身边发生的事情。
记得是去年的暑假,我和爸爸一起去鹅湖边散步,走了一段路,我就一个劲的喊口渴,于是,爸爸就在路边的小店给我买了根冰棍。我边吃边走,一会儿就吃完了,随手把冰棍棒往鹅湖里一扔。爸爸看见了,马上提醒我说;“可可,不能乱扔垃圾噢!如果每个人都像你一样往湖里扔垃圾,这美丽的鹅湖不就变成了垃圾湖了。”我羞愧的说:“知道了,我下次一定不乱扔垃圾。”爸爸微笑着抚摸我的头说:“地球也是我们的家,我们应该保护它,爱护它,让天更蓝,水更清,草更绿。”我调皮的说:“噢,那就是大家一直说的,城市是我家,环境清洁靠大家。我明白了。”让从那以后,我再也不乱扔垃圾了。
我想爱护环境与每个人息息相关,所以要从每个人做起!
篇17:2024中考英语作文预测:保护动物
全文共 2202 字
+ 加入清单Animals are friends of human beings, everybody is responsible for animal protection, we should take good care of them. Because, there are a lot of insects are beneficial to human. For example: the bee, it is industrious, very early in the morning to go out honey, again and again. In the dark, after the bite honey, non-stop to adopt to carry on the processing of honey. The appearance of the bees and ordinary, life is very short, only about 3 months, Can it all his life not rest, work diligently, and them nothing in humans, but for people to make sweet and delicious, nutritious, honey can cure sickness.
And the frog, the frog is covered with green clothes, two big eyes, like two stars glittering and translucent and transparent glass ball, it hid in the field, only eat insects, protect crops. Two a push with its back when it catch insects, a jump, nimbly hind legs up, jump up high, long tongue out, like a vacuum cleaner quickly eat insects to the stomach. But we humans can use them as delicious food on the table.
There are many lovely animals, my favorite is the giant panda. The giant panda is our precious animals, my mother told me that the giant panda is a national treasure of our country! Long giant pandas are cute, chubby, plump, start to counteract a, particularly funny. Its head and body are white, only the rim of the eye, ear, and the shoulder is dark brown. Especially that a pair of black rim of the eye, long in white face, like wearing a pair of sunglasses, plus the clumsiness and start to look in all directions, looks like a little gentleman.
You look! They are adorable, they are our humans good friends, how are we going to have the heart to hurt them?
动物是人类的朋友,保护动物人人有责,我们应该爱护它们。因为,有很多昆虫都对人类有益。比如说:蜜蜂,它很勤劳,每天早上很早就出去采蜜,一次又一次。到了天黑,吃几口蜜糖后,就马不停蹄地对采来的蜜进行加工。蜜蜂的外形并不起眼,生命也很短暂,只有3个月左右;可它一生都不休息,勤勤恳恳地工作,它们对人类毫无所求,却为人们酿造了甘甜可口、营养丰富、可医治病痛的蜂蜜。
还有青蛙,青蛙披着碧绿的衣裳,两只大眼睛,像两颗晶莹透明的玻璃球,它藏在田里,专吃害虫,保护庄稼。它捉害虫的时候两条后腿一蹬,一纵身,敏捷地将后腿一蜷,跳起老高,长长的舌头一伸,就像一个吸尘器一样转眼就把害虫吃到肚子里去了。可是,我们人类却把它们当成美味佳肴摆在餐桌上。
还有许多可爱的动物,我最喜欢的是大熊猫。大熊猫是我国珍贵的动物,妈妈告诉我大熊猫还是我们国家的国宝呢!大熊猫长的很可爱,胖乎乎、圆滚滚的,走起路来一摇一晃的,特别逗人。它的头部和身体都是白色的,只有眼圈、耳朵和肩部是黑褐色的。特别是那一对黑黑的眼圈,长在白白的脸上,像是戴着一副墨镜,加上那笨拙的动作和走起路来东张西望的神情,显得像个小绅士。
你瞧!它们多么可爱,它们是我们人类的好朋友,我们怎么忍心伤害它们呢?
篇18:有关保护水资源的英语作文
全文共 1145 字
+ 加入清单导语:水是生命之源,我们必须保护水资源,下面是yuwenmi小编为大家整理的英语作文,欢迎阅读与借鉴,谢谢!
We have only one earth. But now, the environment becomes worse and worse. As you know, theres no enough clean water for people. So many of them lose their lives because of water. In a lot of countries, people have to cut trees for living. So theres nothing to keep water from running away. Also we have polluted the land, the river and the air. So we have to face more and more floods and droughts . Its time that we must do something useful to protect our environment. We can plant trees and take good care of them. We can save the water and ask our parents to do so. We cant throw any litter onto the ground and we should collect them for recycling. If we take good care of our earth today, it will be more beautiful tomorrow. As you know,t heres no enough clean water for people. So many of them lose their lives because of water.
【参考译文】
我们只有一个地球。但是现在,环境变得越来越糟糕了。如你所知,没有足够的干净的水。很多人失去了他们的生命,因为水。在许多国家,人们生活必须砍树。所以没什么可防止水逃跑。我们也污染了土地,河流和空气。所以我们不得不面对越来越多的洪水和干旱。是时候,我们必须做些有用的事情来保护我们的环境。我们可以种树,好好照顾他们
我们可以节约水,问我们的父母这样做。我们不能扔垃圾在地上,我们应该收集回收。如果我们照顾好我们的地球的今天,这将是更美好的明天。如你所知,这里没有足够的干净的水。很多人失去了他们的生命,因为水。
篇19:保护海洋高中英语作文
全文共 2299 字
+ 加入清单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.
篇20:保护海洋英语作文
全文共 1698 字
+ 加入清单The Marine life environment is a complex system including seawater, sea water content and suspension, seabed sediment and Marine life.The abundant biological resources, mineral resources, chemical resources and power resources of the sea are the indispensable resources of human beings, which are closely related to the survival and development of human beings.
The main objective of Marine conservation is to protect Marine life resources so that they are not depleted for sustainable use.Special priority should be given to protecting Marine life that is valuable and endangered.According to the relevant departments of the investigation, due to overfishing, accidental killing of non-target to allow hunting of Marine, coastal tidal flats in the engineering construction, mangrove deforestation, widespread Marine pollution, at least 25 in the worlds most valuable fisheries resources exhausted, whales, turtles, manatees and many other Marine animals are in danger of extinction.With the expansion of Marine development, the potential for greater damage to Marine biological resources is expected.
Marine conservation of the first task to stop the excessive use of Marine biological resources, secondly we must protect Marine habitats or niches, especially their migratory, spawning, feeding, avoiding DiHai coast, beaches, estuaries, coral reefs, to prevent the heavy metals and pesticides, oil, organic matter and eutrophication of nutrients, such as pollution of the sea.To maintain the renewable capacity of Marine biological resources and the natural purification capacity of seawater, maintain the balance of Marine ecology and ensure the sustainable development and utilization of the sea.