作文范文之有關(guān)全球變暖的作文

1、有關(guān)全球變暖的作文篇一：六級(jí)考研作文 全球變暖】全球變暖， global warmingour planet s atmosphere is warming up rapidly. researchers are certain that emissions from human activities have caused this unnatural change. using the latest computer models, their forecasts are worrisome of what might global warming mean to our planet.

2、fortunately, everyone can be a part of the solution in slowing down global warming. it requires strong commitment from big corporations down to everyday people. this combined effort can make a significant difference. 文章的首段陳述了全球變暖的大致情況 情況不容樂觀。隨后作 者話鋒一轉(zhuǎn)，說幸運(yùn)的是每個(gè)人都可以成為治療全球變暖的一份子。 于是我們可以預(yù)見，在下一段中作者將要具體說每個(gè)

3、人可以的角色。 關(guān)鍵詞： worrisome ； a part of the solution in；all of us can play vital part of the climate change solution. as a citizen, you can ensure that governments recognize the importance of global warming and follow through on their promises. as a consumer, you can support companies that are making the

4、 biggest strides in fighting climate change and encourage other companies to make reducing greenhouse gases a priority. if you re really passionate about having yourvoice heard, you might even want to consider joining a group dedicated to spreading the word about global warming. you can also make ma

5、ny changes in your daily life some that seem small, some less so that cut back on the carbon emissions for which you re responsible. you re probably already familiarwith many of the little steps you can take to be more climatefriendly: 第二段展開了文章的中心：每個(gè)社會(huì)成員可以為全球變暖做些什么。 作為市民、作為消費(fèi)者、作為環(huán)保主義者的領(lǐng)頭羊，你都可以有不 同的舉

6、動(dòng)影響這個(gè)世界。然后作者說，即便你是一個(gè)普通人，你也 可以做出綿薄之力。關(guān)鍵詞： make strides in ； make sth. a prioritymaking your home more energy efficient: better insulate your roof, basement, and walls; seal your ; and replawindows ， replace your old light bulbs with compact fluorescent bulbs. reducing the amount of garbage you produc

7、e: take a reusable bag with you when you shop, buy unpackaged goods, and recycle and reuse materials. using energy wisely: turn off lights and appliances when you re not using them, use the air conditioner less in the summer, and turn down the heat in the winter. 這一段承接了上面一段，列數(shù)了作為普通人的你可以通過那些舉手 之勞獻(xiàn)出一份

8、力。 關(guān)鍵詞： insulate ； compact fluorescent bulb 這篇關(guān)于 global warming 全球變暖的文章是一個(gè)兩段式的文章， 結(jié)構(gòu)是主-分，開頭主要陳述全球變暖的問題，后面兩段具體展開如何應(yīng)對。展開的兩段是承接關(guān)系，全文的第三段便是最具體的內(nèi)容?！酒河⒄Z作文 全球變暖 _the global warming 】I j_ygood morning, every one. my name is yang jinxia, it s my great honor to be here to talk about the global warming probl

9、em and some ways of dealing with it.nowadays, global warming is becoming a serious problem. when i was a child, i can remember big snow came every year, and the weather was so cold that i couldnouttgdoorswithout my scarf and hat. but these years, big snows are hard to see, and even in december, you

10、needn t wear too much because it s not cold at all. the climate is changing.in my opinion, several factors contribute to it. first ofall,alotofgreenhouse gas is produced by cars and factories. furthermore,the loss of forests is another cause of global warming. global warming will cause some harmful

11、effects. firstly, some islands will disappear because of the rise of sea level. secondly, extreme weather results from global warming. when temperature rises, the production of crops will decrease. besides, some animals and plants will disappear, thus destroying the ecosystem.so we should protect th

12、e earth from greenhouse gases. we should plant trees and reduce the amount of carbon dioxide and other greenhouse gases. besides, to control global warming, government should carry out sensible policies and common people also should take theirresponsibilities.hope our earth can become better and bet

13、ter. author, yang jinxia【篇三：有關(guān)全球變暖的文章素材 why is earthwarming 】why is earth warming? by | august 18, 2011 | the views expressed are those of the author and are not necessarily those of scientific american.questions come up all the time about global warming, climate change and the role of human activit

14、ies. for instance we are asked: “ is global warming from an energy imbalance in which the planet is warming up, or is it due to a redistribution of energy wit hin the system? ” the following is a brief answer. yes, the earth is out of balance. . essentially the imbalance comes from the changing comp

15、osition of the atmosphere from human activities: more carbon dioxide and othergreenhouse gases and thus more greenhouse effect. carbon dioxideincluding non electrical, and it is still a factor of 9,000 larger. this calculation highlights the fact that the main way humans interfere with the climate s

16、ystem is not by competing with the sun directly, but rather by interfering with the natural flow of energy through the system. some local competition occurs in big cities and gives rise to the urban heat island effect. however, the imbalance is the result of both the increased trapping of energy and

17、 the response to that: the planet has warmed and is trying to radiate more. but it is in catch up mode and that takes a long time because the ocean response is slow. the net effect of human change is about a 1% effect and the 0.9 w m-2 is the end result.certainly the redistribution of energy can als

18、o play a role. it does so with el ni?o events and la ni?a events. the ocean warms up during certain stages of la ni?a, and the ocean gives up heat and causes a mini-global warming in latter stages of el ni?o events. but for overall warming to come from the ocean, other parts of the ocean would have

19、to be cooling off. that happens locally and temporarily but overall the oceans are clearly warming, as shown by direct measurements of temperature. that means the ocean expands, and one consequence is sea level rise. another consequence of warming is melting of land ice (glaciers, greenland and part

20、s of antarctica) and that too adds to sea level rise. melting arctic sea ice is also a manifestation but does not add to sea level rise. since 1992 when precision altimeters were deployed in space for the first time, global sea level has risen at over 3 mm/year: or 2 and ? inches (a rate of over a f

21、oot per century). so the ocean is warming all right, there is no doubt, and the warming corresponds closely to the estimated imbalance because that is where most of the energy ends up. how do we know what the imbalance is? the main way is to add up all the observed changes noted in the previous para

22、graph. over 90% of the warming of the planet is found in the oceans. some goes into melting glaciers, sea ice, greenland and antarctica. a tiny amount goes into warming the land and the atmosphere. we can also make estimates using global climate models and compare with observations. the advantage of

23、 the latter is that the model“ observations ” are perfect and energy is conserved, while some energy can be lost or go un-observed in the real world; the latter is the case in the deep ocean for instance, which appears to be heating up although data are few.in recent times, we can also make measurem

24、ents from satellites of energy coming in and going out of the earth system. these measurements provide good estimates of changes from year to year but are not accurate enough to pin down the actual imbalance. together these observations indicate how well we can close the energy budget so that everyt

25、hing adds up, and this proves difficult in the short term of a few years, but a coherent picture is present over the longer term, say since 1992 when we have global sea level as an extra constraint.about the author: dr. kevin e. trenberth is a senior scientist in the climate analysis section at the

26、national center for atmospheric research. he has been prominent in all aspects of climate variability and climate change research and is a leader in the intergovernmental panel on climate change assessments and in the world climate research programme. in recent times his primary research has focused

27、 on the global energy and water cycles and how they are changing. more ?warming ocean current might create coral refuges whereas global warming devastates most coral, it also is predicted to bring a stronger deep equatorial undercurrent that could create a bit of habitat alongside islands may 1, 201

28、2 |by wynne parry and livescience global warming is expected to have devastating effects on coral reefs, but recent research points to a few exceptions. warming in the equatorial pacific may actually create refuges for corals around a handful of islands, even as it bleaches, or kills, corals elsewhe

29、re, suggests new research that predicts increased upwelling of cold, nutrient-rich water in these places. these little islands in the middle of the ocean and have a big impact on their own future, which i think is a beautiful concept, said study researcher kristopher karnauskas, a woods hole oceanog

30、raphic institution scientist, in a press release issued by the institution.corals are animals that host tiny plants, or algae, that feed them using photosynthesis. the reefs corals build provide important habitat for many species. warming water can cause corals to expel their algae, a , which turns

31、the corals white and puts them under great stress and at risk of death.global climate models predict the central tropical pacific will warm by about 5.0 degrees fahrenheit (2.8 degrees celsius) by the end of the century. to get a better idea of how conditions might play out on a small geographic sca

32、le, the researchers used the global models in combination with a fine-scale regional model. the low-lying coral atoll islands, part of , are as small as 1.54 square miles (4 square kilometers).as a result of other changes , their work predicts the deep equatorial undercurrent (euc), an eastward flow

33、ing current at the equator, will strengthen by 14 percent; this strengthening would create habitat for corals to flourish alongside the islands by bringing cooler water and nutrients to the surface. though the euc is an east-to-west current, when it hits an island, water gets deflected upward.our mo

34、del suggests that the amount of upwelling will actually increase by about 50 percent around these islands and reduce the rate of warming waters around them by about 1.25 degrees f (0.7 degrees c) per century, karnauskas said.the research appears in the april 30 issue of the journal nature climate ch

35、ange.the “ pause” in global warming is finally explained by mark fischetti | february 26, 2015 | 187the views expressed are those of the author and are not necessarily those of scientific american. let s be clear: theplanet is still getting hotter. the so-called in global warming means the rate of t

36、emperature rise has slowed. the average is still goi ng up, but in the past 10 to 15 years it hasn t beengoing up as quickly as it was in the decades before.although the ongoing increase is trouble, is preferable. the question is: why did the slowdown occur and how long will itlast? we now have an a

37、nswer. three well-known climate researchers have combined actual temperature readings from 1880 to 2010 with a slew of climate models and have concluded that the slowdown is caused by the timing of two large ocean cycles, known as the pacific multidecadal oscillation and the atlantic multidecadal oscillation. and their analysis, in science, suggests that the slowdown will end in the next few decades.the temperature of the pacific and atlantic oceans, particularly the upper layers, goes through natural cycles of warmer and cooler, driven