高中生關(guān)于全球變暖的英語(yǔ)演講稿

1、高中生關(guān)于全球變暖的英語(yǔ)演講稿 高中生關(guān)于全球變暖的英語(yǔ)演講稿1in recent years do you think the weather suddenly turned hot had the cool autumn now almost until early october the hottest day in august has reached more than 40 degrees. these is different from normal vision we have ourselves to blame the curse.today the term global

2、 warming has gradually penetrated into our life. the word sounds very academic even feel very far away from us so some people are not. in fact the effects of global warming is beyond our imagination: global precipitation redistribution glaciers and permafrost melt rising sea levels and so on. both h

3、arm the natural ecosystem balance more threatening human food supply and living environment.now that you have aware of the dangers of global warming you should go to predict and improve it. imagine if global warming is melting in the 21st century the global average temperature rising gradually so th

4、e next super storms the next round of searing heat the next major natural disasters will happen? china? the united states? japan? no one knows. the debate has ended. scientists around the world agree points out that the earths average temperature has increased nearly 1 . due to all the early warning

5、 information human use of thousands of ships tens of thousands of the monitoring stations of the land and outer space satellite to monitor the earth together. scientists will have the most advanced computer data input model to estimate the earth can face the future. prediction results are worrying.

6、forty years later the himalayan glaciers the water to the survival of millions of people are likely to disappear. the greenland ice sheet could melt in 50 years. currently half of the worlds biodiversity in the amazon rainforest but the rainforest is likely to turn into a piece of barren land by the

7、 end of the century. is likely to be the future of the world like in the movie the day after tomorrow tornado ice fracture the temperature fell sharply ice storms freezing rain earthquake flood tsunami volcanic eruption. this is not a crazy fantasy if humans dont stop destroying the environment it w

8、ill become a reality!however in the warming is also good. global warming on rice in heilongjiang province has played a large role.just global warming to human future development is still the do more harm than good.in order to save the planet we should try to be: dont open air conditioning use recycl

9、ed paper environmental protection to leave the meat with nitrous oxide dont use plastic bags r22 by bus; r22; little drops of life. actually its not difficult to environmental protection as long as you support environmental protection is the best gift you gave the planet.thank you all!高中生關(guān)于全球變暖的英語(yǔ)演講

10、稿2environmental protectionno one，regardless of race, religion or nationality, can deny that the world we live in is becoming increasingly intolerable because of the effects of global warming. according to many experts, even greater impacts are still on the way.there are numerous causes for this prob

11、lem. on one hand, human-related emissions of carbon into the atmosphere is causing, and will in the future cause, significant global warming according to the theory. on the other hand, the lack of knowledge about the importance of protecting environment hinders the solving of the problem.examdait is

12、 urgent that immediate and effective actions should be taken right away. first, more trees need to be planted to help improve and beautify the environment. besides, stricter laws concerning global warming and irresponsible use of fuel resources have to be put into effect and achieved good results. i

13、n a word, there is a long way to go before we can take a comfortable world for granted again .高中生關(guān)于全球變暖的英語(yǔ)演講稿3people around the world may feel that the climate has been getting steadily warmer and warmer in recent years. places which used to be abundant in snowfall have frequently experienced snowfr

14、ee無(wú)雪的 winters. drought lasts longer in some dry areas. people find that without air conditioners they could hardly work or fall asleep on hotter summer daysg.the side effects of global warming are alarmins. a warmer global climate melts the ice caps, raising sea levels. what is more, it disturbs wea

15、ther patterns, causing droughts, severe storms, hurricanes 颶風(fēng). people suffer a lot from disasters relevant to global warming.to stop global warming we should make immediate and continual efforts. we hope the situation will soon change. global warming catches and holds our concern, for it affects us

16、and will affect our later generations. we cannot wait any longer. do it. do it right. do it right now.高中生關(guān)于全球變暖的英語(yǔ)演講稿4global warming the gradual increase of the temperature of the earths lower atmosphere as a result of the increase in greenhouse gases since the industrial revolution.the temperature

17、of the atmosphere near the earths surface is warmed through a natural process called the greenhouse effect. visible shortwave light comes from the sun to the earth passing unimpeded through a blanket of thermal or greenhouse gases composed largely of water vapor carbon dioxide methane nitrous oxide

18、and ozone. infrared radiation reflects off the planets surface toward space but does not easily pass through the thermal blanket. some of it is trapped and reflected downward keeping the planet at an average temperature suitable to life about 60f (16c).growth in industry agriculture and transportati

19、on since the industrial revolution has produced additional quantities of the natural greenhouse gases plus chlorofluorocarbons and other gases augmenting the thermal blanket. it is generally accepted that this increase in the quantity of greenhouse gases is trapping more heat and increasing global t

20、emperatures making a process that has been beneficial to life potentially disruptive and harmful. during the past century the atmospheric temperature has risen 1.1f (0.6c) and sea level has risen several inches. some projected longer-term results of global warming include melting of polar ice with a

21、 resulting rise in sea level and coastal flooding; disruption of drinking water supplies dependent on snow melts; profound changes in agriculture due to climate change; extinction of species as ecological niches disappear; more frequent tropical storms; and an increased incidence of tropical disease

22、s.improved automobile mileage reforestation projects energy efficiency in construction and national support for mass transit are among relatively simpler adjustments that could significantly lower u.s. production of greenhouse gases. more aggressive adjustments include a gradual worldwide shift away

23、 from the use of fossil fuels the elimination of chlorofluorocarbons and the slowing of deforestation by restructuring the economies of developing nations. in 20_ the bush administration proposed several voluntary measures for slowing the increase in instead of reducing emissions of greenhouses gase

24、s.高中生關(guān)于全球變暖的英語(yǔ)演講稿5global warmingthere is little doubt that the planet is warming. over the last century, the planets temperature has risen by around 1 degree fahrenheit (0.6 of a degree celsius). the warmest since the mid 1800s was the 1990s. the hottest years recorded were 1997, 1998, 2001, 2002, 2

25、003.the united nations panel on climate change projects that the global temperatures will rise 3-10 degrees fahrenheit by the centurys end - enough to have the polar caps all but melted. if the ice caps melt, a vast majority of our countries borders will be under water. monuments and great buildings

26、, as well as homes and lives will be under water, including new york city.so now we know what some of the causes are for global warming, how can we as individuals do our part to help save the planet?the answer is simpler than you may think. you dont have to go miles away from home to protest, or spe

27、nd masses of money. if you try to follow the few simple steps that i shall now give you, you will have started to help us all.firstly, plant a tree. this could be easier than it sounds. join or help out a local wildlife group and ask to plant a tree. trees, when fully grown, will help keep the plane

28、t cooler. on the same point, you could protest against the demolition of the rainforests. this is the same principle, we need the trees to cool our planet and yet they are chopping them down to create roads or homes.something as simple as walking instead of taking the car will help reduce pollution.

29、 as well as stopping pollution, you are giving yourself exercise, something important for our bodies. so the next time you get into your car, or your motorbike, think - do i have to make this journey by vehicle or can i walk?when you are at home, and your getting a little cold. put a jumper on and d

30、o not adjust the heating. the extra heat produced by our homes also affects the planet. so try wearing an extra layer in winter.if possible, buy your fruit and vegetables from local suppliers. and try to avoid imported goods. the more foreign food that we import the more pollution from aeroplanes and boats it will create.keeping to the speed limit can also help the environment. the more you speed the more petrol you are