破坏大自然的事例？英文双语对照

事例一：森林面积减少

森林被誉为“地球之肺”、“大自然的总调度室”，对环境具有重大的调节功能。因发达国家广泛进口和发展中国家开荒、采伐、放牧，使得森林面积大幅度减少。据绿色和平组织估计，100年来，全世界的原始森林有80％遭到破坏。另据联合国粮农组织最新报告显示，如果用陆地总面积来算，地球的森林覆盖率仅为26．6％。森林减少导致土壤流失、水灾频繁、全球变暖、物种消失等。一味向地球索取的人类，已将生存的地球推到了一个十分危险的境地。

事例二：臭氧层破坏和损耗

自1985年南极上空出现臭氧层空洞以来，地球上空臭氧层被损耗的现象一直有增无减。到1994年，南极上空的臭氧层破坏面积已达2400万平方公里。现在在美国、加拿大、西欧、前苏联、中国、日本等国的上空，臭氧层都开始变薄。在对消耗臭氧层物质（ODS）实行控制之前（1996年以前），全世界向大气排放的ODS已达到了2000万吨。

事例三：罗布泊消失了

塔里木河全长1321公里，是中国第一、世界第二大内陆河。据《西域水道记》记载，20世纪20年代前，塔里木河下游河水丰盈，碧波荡漾，岸边胡杨丛生，林木茁壮。1925年至1927年，国民党政府一声令下，塔里木河改道向北流入孔雀河汇入罗布泊，导致塔里木河下游干旱缺水，3个村庄的310户村民逃离家园，耕地废弃，沙化扩展。解放后的1952年，塔里木河中游因修筑轮台大坝，又将塔里木河河道改了过求。塔里木河下游生态环境得以好转，胡杨枝重吐绿叶，原来废弃的耕地长出了青草，这里变成牧场。

事例四： 水资源枯竭

水是生命的源泉，水，似乎无所不在。然而饮用水短缺却威胁着人类的生存。目前，世界的年耗水量已达7万亿立方米，加之工业废水的排放，化学肥料的滥用，垃圾的任意倾倒，生活污水的剧增，使河流变成阴沟，湖泊变成污水地；滥垦滥伐造成大量水分蒸发和流失，饮用水在急剧减少。水荒，向人类敲响了警钟。据全球环境监测系统水质监测项目表明，全球大约有10％的监测河流受到污染，生化需氧量（BOD）值超过6．5毫克／升，水中氮和磷污染，污染河流含磷量均值为未受污染河流平均值的2．5倍。另据联合国统计，目前全世界已有100多个国家和地区生活用水告急，其中43个国家为严重缺水，危及20亿人口的生存，其主要分布在非洲和中东地区。许多科学家预言：水在21世纪将成为人类最缺乏的资源。正如人们所希望的，不要让人类的眼泪成为地球上最后一滴水。

事例五：海洋资源破坏和污染

据估计，全世界有9.5亿人把鱼作为蛋白质的主要来源。但近几十年来，人类对海洋生物资源的过度利用和对海洋日趋严重的污染，有可能使全球范围内的海洋生产力和海洋环境质量出现明显退化。1993年，在全世界捕捞的1.01亿吨鱼中,有77.7%来自海洋。当年，联合国粮农组织估计，2/3以上的海洋鱼类已被最大限度或过度捕捞，特别是有数据资料的25%的鱼类，由于过度捕捞，已经灭绝或濒临灭绝，另有44%的鱼类的捕捞已达到生物极限。而另一方面，人类活动产生的大部分废物和污染物最终都进入了海洋。全球每年有数十亿吨的淤泥、污水、工业垃圾和化工废物等被直接排入了海洋，河流每年也将近百亿吨0淤泥和废水、废物带入沿海水域，引起沿海生境改变，使动物的栖息和繁殖地遭到破坏。海洋污染的主要来源和比例约是：城市污水和农业径流排放44%，空气污染33%，船舶12%，倾倒垃圾10%，海上油、气生产1%。

Example one: Silvan area decreases

The forest is known as " earthly lung " , " the total control room of nature " , have great adjustment to the environment function. Be imported extensively because of the developed country and developing country open up wasteland, cut, depasture, make silvan area decreases substantially. Organize estimation according to green peace, come 100 years, the virgin forest of the whole world has 80 ％ to be destroyed. Occupy Food and Agriculture Organization of the United Nations additionally newest report shows, if use terrestrial gross area to calculate, earthly forest is enclothed rate it is only 26. 6 ％ . The forest decreases cause edaphic prediction of a person's luck in a given year, flood frequent, whole world calefacient, species disappears etc. The mankind that asks for to the earth blindly, already turned existent world a very hazardous condition.

Example 2: Ozonosphere is destroyed and loss

From 1985 antarctic in the sky since occurrence ozonosphere is empty, the earth in the sky ozonosphere is had to add all the time by the phenomenon of loss without decrease. To 1994, the ozonosphere in the sky destroys antarctic the area already amounted to kilometer of 24 million square. Be in now the United States, Canada, Western Europe, before of the country such as Russia, China, Japan in the sky, ozonosphere begins to attenuate. In material of ozonosphere of offset bad news (ODS) before practicing control (before 1996) , the ODS that the whole world discharges to atmosphere already achieved 20 million tons.

Example 3: Collect cloth berth disappeared

The Mu He in the tower is full-length 1321 kilometers, it is China the first, the 2nd old inland river of world. According to " aqueduct of the Western Regions is written down " account, 20 centuries before 20 time, the Mu He in the tower is downstream river water heavy full figure, blue waves ripples, bank diversiform-leaved poplar is fascicular, forest healthy and strong. Came 1925 1927, kuomintang government make fall, change its course of river of the wood in the tower flows into peacock river to collect collect cloth berth north, bring about the Mu He in the tower downstream drought lacks water, 310 villagers of 3 villages escape home, farmland is deserted, change dene patulous. After liberating 1952, the You Yinxiu in the Mu He in the tower builds round of stage large dams, had changed river course of river of the wood in the tower to beg again. The Mu He in the tower is downstream zoology environment is able to improve, diversiform-leaved poplar branch spits greenery again, deserted before farmland grew green grass, here becomes grazing land.

Example 4: Water natural resources is dried up

Water is a lifespring, water, it seems that omnipresent. However of drinking water shortage is minatory however mankind live. Current, year of water consumption of the world already amounted to 7 trillion stere, of together with industrial waste water discharge, the abuse of fertilizer, the aleatoric dump of rubbish, the leap of sewage, make the river becomes a ditch, laky turn sewage into the ground; Excessive cultivate denudation causes a large number of moisture to evaporate with prediction of a person's luck in a given year, drinking water is decreasing quickly. Water shortage, ring alarm bell noisy to the mankind. According to global environment water quality of the system that monitor monitors a project to make clear, the whole world has the monitoring river of 10 ％ to be polluted about, biochemical oxygen demand (BOD) the value exceeds 6. 5 milligram ／ rises, the nitrogen in water and phosphor are polluted, contaminative river contains phosphorous quantity to all be worth 2 what pollute fluvial average to did not suffer. 5 times. Occupy U.N. statistic additionally, at present the whole world already had 100 many countries and area life to be in an emergency with water, among them 43 countries are lack water badly, those who endanger 2 billion population live, its basically distributing to be mixed in Africa middle east area. A lot of scientists are fatidical: Water will become the resource that the mankind lacks most in 21 centuries. No less than people place hopes, the tear that does not let the mankind becomes on the earth last water.

Example 5: Marine resource is destroyed and pollute

According to estimation, the whole world has 950 million person to regard protein main source as the fish. But come nearly a few years, what the mankind gives birth to source of goods and materials to ocean is excessive use and serious with each passing day to ocean pollution, make the marine productivity inside global limits and ocean environment quality appear to degrade apparently likely. 1993, in 101 million tons of fish that catch all over the world, 77.7% come from ocean. In those days, estimation of Food and Agriculture Organization of the United Nations, the marine fish of 2/3 above already by utmost or excessive catch, have the of 25% fish of data data especially, as a result of excessive catch, had been eradicated or be close to eradicating, of the fish that has 44% additionally catch to already reached biology limit. And on the other hand, the major waste material that human activity produces and contaminant entered ocean finally. The whole world has rubbish of billions of tons silty, sewage, industry and chemical trash every year to waited to be emited into directly marine, the river is annual also near one billion four hundred and ten million and sixty-five thousand four hundred and eight tons 0 silty take coastal water area with liquid waste, trash, cause coastal habitat change, make the perch of the animal and progenitive ground are destroyed. The main source of marine pollution and scale are about: Urban foul water and agricultural runoff are discharged 44% , air is polluted 33% , shipping 12% , dump rubbish 10% , production of maritime oil, gas 1% .