求英语作文 The polluted earth in 21001.现今环境污染越来越严重 2.设想一下2100年污染严重的地球 3.我们该怎么办
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求英语作文 The polluted earth in 21001.现今环境污染越来越严重 2.设想一下2100年污染严重的地球 3.我们该怎么办
求英语作文 The polluted earth in 2100
1.现今环境污染越来越严重 2.设想一下2100年污染严重的地球 3.我们该怎么办
求英语作文 The polluted earth in 21001.现今环境污染越来越严重 2.设想一下2100年污染严重的地球 3.我们该怎么办
2100年 人类需要4个地球
地球环境为人类生产提供资源,为人类提供生命支持,是满足人类需要的基础.自19世纪工业革命以来,人类创造了前所未有的物质财富.然而,当人类在享受着这些财富的时候,联合国不久前的一份报告却对地球的发展前景表示了极大的忧虑.
一方面,地球的海平面在不断上升,森林不断遭到严重破坏,全世界超过20亿人面临缺水困境,每年300多万人死于空气污染,220万人因水污染而丧生.
另一方面,地球的每一秒钟却生产出28.6吨金属,生产出4台电视机,生产出1.3辆汽车,排放762吨二氧化碳,减少0.6公顷森林,还有2.6个生命出生.
由此,联合国得到的结论是:到2100年,我们将需要四个地球.
可见,人类创造的物质财富,是以付出环境污染和生态破坏的巨大代价而换取的.人类对地球环境长期掠夺式的开发和利用,已严重威胁到人类自身的生存和发展.
我们国家的情况同样不容乐观.从小我们就有“中国地大物博,人口众多”的概念,然而,真正理解其中含义的又有多少人呢?说面积,我国位于世界前几位;说资源,我们的总量也颇为丰富,但是,在“人口众多”之下,我国各种资源的人均占有量却远低于世界的平均水平.从以下的数据可以看到我国各种重要资源人均水平与世界平均水平的差距,以世界平均水平为100%做标准,我们的淡水占有量只有25%,耕地为40%,森林蓄积量12.5%,45种主要矿产资源为50%,石油为11%,天然气为4.5%,铁矿石42%,铜18%,铝土矿为7.3%.
改革开放二十多年来,中国的国内生产总值不断提高,取得了令世界瞩目、国人自豪的翻了两番的成就.然而,在背后支撑着这辉煌成就的是高能耗和高投入.再看看以下的数据,以世界总体消耗水平为100%做比较,2004年我国各种重要资源消耗占世界总体消耗量的比率:水泥为40%,原煤为31%,钢铁为27%,氧化铝为25%,石油为7.4%.以我国消耗水平为100%做比较,我国创造每万元GDP所消耗的能源数量与世界上一些国家的比率:加拿大是30.4%,美国是23.2%,英国是18.9%,德国是13%,日本是8.7%.
广东作为全国改革开放的先行省份,在经济取得巨大成就的同时,持续发展亦受到自然资源的严重制约.按2003年广东省总人口7723.42万人计,广东煤炭保有资源总储量为55744.5万吨,人均6.96吨;铁矿石保有资源总储量为81563万吨,人均10.56吨;耕地面积总数量为4587万亩,人均面积只有0.594亩,不到全国人均面积的一半,低于联合国划定的0.8亩的最低警戒;森林蓄积量人均4.53立方米,仅为全国平均水平的一半,世界平均水平的6.25%.而广东2003年平均每天各种能源的消耗总量(折标煤)已接近35万吨;平均每人年生活用能源也超过180千克.虽然2005年广东万元GDP能耗处于全国先进水平,但与世界上的一些国家相比仍有很大的差距
Human needs in 2100 the Earth 4
Earth's environment for the production of human resources, to provide for human life support, is to meet basic human needs. Since the 19th century the industrial revolution, mankind has created unprecedented material wealth. However, when these human beings in the enjoyment of wealth, the United Nations in a report not long ago, prospects for the development of the Earth has expressed great concern.
On the one hand, at the Earth's sea level rising, forests continue to have been seriously damaged, more than two billion people all over the world face water shortage in the plight of more than 300 million people each year die from air pollution, 2.2 million people lost their lives due to water pollution.
On the other hand, every second of the Earth has produced 28.6 tons of metal, to produce 4 TV sets, 1.3 to produce motor vehicles, 762 tons of carbon dioxide emissions, decreased by 0.6 hectares of forest, also born in the lives of 2.6.
Thus, the United Nations concluded that: By 2100, we will need four earth.
We can see that mankind has created material wealth, is based on environmental pollution and ecological damage to pay the huge price for the. Human plunder of the earth's environment of long-term development and use, has been a serious threat to human survival and development of their own.
The same situation our country is not optimistic. From an early age we have "Chinese vast territory and abundant resources, large population" concept, however, really understand the meaning of one of how many people? Said area, a number of our country in the world before; say resources, we are also quite rich in the total, but in the "population" under the various resources of our country's per capita is far below the world average. From the following data can see a variety of important resources for our country and the world average per capita levels, to the world average of 100% to do the standard, our share of fresh water, only 25%, 40% of arable land, forest stock volume of 12.5% , 45 major mineral resources of 50%, 11% of oil, natural gas was 4.5%, iron ore 42%, copper 18%, bauxite 7.3%.
Twenty years of reform and opening up, China's gross domestic product increasing attention has made the world, people proud of the achievements quadrupled. However, behind the scenes to support the achievements of this brilliant high-energy consumption and high investment. Let us consider the following data to the world's overall consumption level of 100 percent to do as compared to our country in 2004 accounted for a variety of important world resource consumption ratio of the overall consumption: 40% cement, 31% coal, iron and steel 27%, oxidation aluminum 25%, oil of 7.4%. Consumption level in our country to do was 100% compared to the creation of our country for every ten thousand yuan GDP energy consumption by some of the world's number and the ratio of country: Canada is 30.4%, 23.2% are the United States, the United Kingdom is 18.9%, Germany 13%, Japan is 8.7%.
Guangdong's reform and opening up as the country's first province made great achievements in the economy at the same time, sustainable development of natural resources are also subject to serious constraints. Guangdong Province in 2003 by the total population of 77,234,200 people, Guangdong total coal reserves to maintain the resources 557,445,000 tons, 6.96 tons per capita; resources to maintain the total iron ore reserves of 815.63 million tons, 10.56 tons per capita; the total number of arable land 4587 mu per capita land area of only 0.594, less than half the national per capita area, which is lower than 0.8 acres of the United Nations designated the minimum warning; forest stock volume 4.53 cubic meters per capita, is only half the national average, the world average of 6.25%. Guangdong in 2003 the average daily range of the total energy consumption (equivalent of standard coal) has been close to 350,000 tons; Living with an average energy in more than 180 kg. Million in 2005 while GDP energy consumption in Guangdong, the country's advanced level, but some of the world's countries are still a large gap between the