容嬷嬷201
Global Warming 全球暖化 温室效应导致全球变暖 global warming“温室效应”是指地球大气层上的一种物理特性。假若没有大气层，地球表面的平均温度不会是现在合宜的15℃，而是十分低的-18℃。这种温度上的差别是由温室气体导致的，这些气体吸收红外线辐射而影响到地球整体的能量平衡。受到温室气体的 影响，大气层吸收红外线辐射的份量比它释放到太空外的垛，这使地球表面温度上升，这个过程就是“天然的温室效应”。但由于人类活动释放出大量的温室气体，结果让更多红外线辐射被折射到地面上，加强了“温室效应”的作用。 全球变暖是目前全球环境研究的一个主要议题。根据对100多份全球温度变化资料的系统分析，发现全球平均温度已升高0.3～0.6摄氏度。其中11个最暖的年份发生在80年代中期以后，因而全球变暖是一个毋庸置疑的事实。全球变暖将带来非常严重的后果，如冰川消退、海平面上升、荒漠化等等，还给生态系统、农业生产带来严重影响。全球变暖现象最终可能会导致全球变冷，形成另一次冰河时代。就像我们在美国电影《后天》里面看到的可怕情景。 因此，探求全球变暖的起因成为重要的研究课题。分析表明，虽然地球演化史上曾经多次发生变暖--变冷的气候波动，但人类活动引起的大气温室效应增长可能是主要因素。 各国政府、企业和科学家们逐步达成共识，大家必须迅速行动起来，与气候变化作斗争。目前人们已经采取措施限制二氧化碳的排放量。许多公司正积极应对二氧化碳限排时代的到来。Global Warming 全球暖化 温室效应导致全球变暖 According to the National Academy of Sciences, the Earth's surface temperature has risen by about 1 degree Fahrenheit in the past century, with accelerated warming during the past two decades. There is new and stronger evidence that most of the warming over the last 50 years is attributable to human activities. Human activities have altered the chemical composition of the atmosphere through the buildup of greenhouse gases – primarily carbon dioxide, methane, and nitrous oxide. The heat-trapping property of these gases is undisputed although uncertainties exist about exactly how earth’s climate responds to them. Energy from the sun drives the earth's weather and climate, and heats the earth's surface; in turn, the earth radiates energy back into space. Atmospheric greenhouse gases, such as water vapor, carbon dioxide, trap some of the outgoing energy, retaining heat somewhat like the glass panels of a greenhouse. Without this natural "greenhouse effect," temperatures would be much lower than they are now, and life as known today would not be possible. Instead, thanks to greenhouse gases, the earth'
TracyJunli
Global WarmingAt present, with the development of economies around the world may feel that the climate is becoming more and more warmer. CO2 makes up about 70% of the greenhouse gases. It is considered to be one of the greatest reasons of global warming.It’s very serious, but many people can’t recognize that because the only think about themselves. They don’t mind the climate becoming warmer. They don’t mind the ice melting. They don’t mind how many animals become extinct. They don’t mind how many coastal cities become flooded . They don’t mind……They are wrong. Global warming can have many strong influences for us. For example:Global warming will make trouble with physiology. People will become more easily ill and even breed new diseases. People will pay more and more money for health care but more and more people die. No amount of money or even the best doctors, wll not be able to save your life. Even if you aren’t dying, you will feel sad and alone. So many relatives and friends’ death will make you want to kill yourself.Global warming will give the air and ocean huge power. Thus making large or even super typhoons, hurricanes, tsunamis and other disasters. Many houses will be destroyed. Many place will flood. We will be faced with more and more disasters, damning more and more money and life.Rising temperatures will not only create higher sea level, but also will cause droughts. Large-scale areas will become arid and thus food production will be less. We will be without food. People around the world will face food shortages and more and more war will happen for food.If temperatures continue to rise, animals will come out of hibernation early, but will not have the food supply necessary to survive. For example: Insects will eat a lot of forests and crops with no natural enemies. Without forests, global warming will become more and more sercious, creating a vicious cycle. No crops, means no human food.The greatest of global warming is at ice age like in the movie “The Day After Tomorrow”, this is a scenario that take place.So we must do something to avoid these things from happening. First, we should use more and more clean energy and less oil and coal. Second, we should go to work by bus or on foot instead of driving. Third, we should plant more trees. The most important point is we should make a habit of saving energy in everyday life.绝对是原创，你可以从我这400多字里选选改改，变成成自己的 第一段是原因，最后一段是因该怎么做，120词的话，你也可以就看看这两段
楠木青城……
写作思路：把全球气候变暖的坏处写出来，呼吁大家保护环境。
Recently,global warming has become ahot topic among people. It results from serious airpollution.
近年来，全球气候变暖已成为人们关注的热门话题。它源于严重的空气污染。
As the environmental pollution is more and more strict, thetemperature ofall theworld has dramatic increased. Gradually, some disastersuch as drought,floodandGlaciers Melting follow. How terrible it is!
随着环境污染的日趋严峻，世界上的气温都急剧增加。渐渐地，一些灾害，如干旱，洪水和冰川融化接窘而来。多么可怕啊!
Therefore,we need to protect our earth and fight against the disaster together.We shouldstart from the trivial side. Making contribution to protecting our home.
我们要一起保护我们的地球和与灾难作斗争。我们应该从身边的小事做起。为了保护我们的家园作出贡献。
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