当前位置:首页>案例中心>Essay代写范文案例>Essay代写范文-全球变暖和我们的关系

Essay代写范文-全球变暖和我们的关系

发布时间:2022-06-15 15:59:02 阅读:126

案例简介

  • 作者:博远教育
  • 导读:本文是一片Essay代写范文,本文主要讨论了全球变暖和我们的关系。人们一直一致认为,全球变暖是人类活动的后果。在我看来,全球变暖是一种自然现象,是气候循环的一部分。
  • 字数:944 字
  • 预计阅读时间:3分钟

案例详情

本文是一片Essay代写范文,题目为:Global Warming and Our Relationship,本文主要讨论了全球变暖和我们的关系。

全球变暖宣传海报

There has been an ongoing consensus that global warming is a consequence for human activities. in my point of view, Global warming is a natural phenomenon which is a part of climate cycles.

人们一直一致认为,全球变暖是人类活动的后果。在我看来,全球变暖是一种自然现象,是气候循环的一部分。

As recognized by environmental science academia, too much carbon dioxide emission from human activities is deemed as the major cause for global warming. They argued that in the carbon cycle on earth, deforestation and fossil fuel combustion are the major contributors for carbon dioxide emission. As a result, much more long wave radiation is absorbed by the atmosphere, thus heated the surface of the earth.

正如环境科学学术界所承认的那样,人类活动排放的二氧化碳过多被认为是全球变暖的主要原因。他们认为,在地球的碳循环中,森林砍伐和化石燃料燃烧是二氧化碳排放的主要贡献者。结果,更多的长波辐射被大气吸收,从而加热了地球表面。

However, the main greenhouse gases in the world include water vapor, ozone, carbon dioxide, Nitrous Oxide, methane and so on. The molecular structure of carbon dioxide determines that it can only resonate with long wave radiation in 15 micron band, 10 micron band, and 5.2 micron band. While the resonance of water vapor covers all bands. At the same concentration, the greenhouse effect of water vapor is much stronger than that of carbon dioxide. In the environment, carbon dioxide is less than 4/10000 of the volume of the atmosphere, and water vapor is more than 4/100. The average concentration of water vapor is 26 times that of carbon dioxide, and more than 100 times that of carbon dioxide in the near surface atmosphere. Therefore, the role of carbon dioxide in greenhouse effect is small enough to be negligible. It is absurd to attribute the greenhouse effect to human activities or human carbon dioxide emissions.

A study has found out that even if there had been no industrial revolution along human history, global temperatures would stay at the same level as they are currently. According to a collaborative research by an Australian climate science negators Jennifer Marohasy and computer scientist John Abbott, global warming effect is almost completely natural.

Jennifer collected evidence of temperature changes in the past 2000 years, such as tree rings, coral cores, and so on. They feed the dataset into a neural network, which was used by Dr. John over the years to predict the Australian rainfall pattern, to study the global temperature over the past 2000 years. By observing patterns and provide predictions, the neutral network shows that temperature rise predicted is roughly the same as that measured in real life. Carbon dioxide is not added to the actual measurement, which indicates that carbon dioxide is not the one of the major causes of global warming.

They also pointed out that there was a period of time known as the Medieval Warm Period, which was about 986 to 1234, during which time the temperature was roughly equivalent to today's temperature. Therefore, two Australian researchers believe that there is evidence that the earth will be warmer to a certain extent, no matter whether human emissions are released to the atmosphere.“Global temperatures were on average after 1980, which coincided with the slow decline of other mainstream scientists.” Such claim is stated by Jennifer Marohasi and John Abbott. It is not difficult to understand this before. They suggest that the climate warming we are experiencing now is mainly natural, and that climate change may be cooling down in the past.

他们还指出,有一段时间被称为中世纪暖期,大约在986年至1234年,这段时间的温度大致相当于今天的温度。因此,两位澳大利亚研究人员认为,有证据表明,无论人类排放物是否释放到大气中,地球都会在一定程度上变暖。“1980年后,全球气温处于平均水平,这与其他主流科学家的缓慢下降相吻合。”珍妮弗·马罗哈西(JenniferMarohasi)和约翰·阿伯特(JohnAbbott)提出了这种说法。以前不难理解这一点。他们认为,我们现在经历的气候变暖主要是自然现象,过去气候变化可能正在降温。

以上就是本篇Essay范文全部内容,欢迎阅读,范文内容和格式仅供留学生参考学习,不得抄袭,如有Essay代写需要,请咨询网站客服。

其他案例