Global Warming Essay - 1486 Words

Global Warming Global warming is the progressive gradual rise of the earths surface temperature thought to be caused by the enhanced greenhouse effect and responsible for changes in global climate patterns. The greenhouse effect is a term used to describe the roles of water vapor, carbon dioxide, and other trace gases in keeping the Earths surface warmer than it would be otherwise. These radiatively active gases are relatively transparent to incoming shortwave radiation, but are relatively opaque to outgoing longwave radiation. The latter radiation, which would otherwise escape to space, is trapped by these gases within the lower levels of the atmosphere. The subsequent reradiation of some of the energy back to the surface†¦show more content†¦They have been used in refrigerators, air conditioners, plastic foams (bubbles) and aerosol cans. Water vapour is the most important greenhouse gas. Human activities are not directly changing the level of water vapour in the atmosphere. However, increases in other greenhouse gases are likely to raise the earths temperature and thus increase evaporation and therefore the level of water vapour. This would further increase global warming. There is an increasing body of evidence to suggest that global warming is taking place. Some examples include that temperature measurements taken in the traditional way - by thermometers in meterological stations - show that the world warmed by about 0.5 degrees celcius during the twentieth century, 1995 was the worlds hottest year since reliable records began around 140 years ago - prior to this 1990 was the hottest year, The Australian Bureau of Meterorology records show that Australia has been warming since the early 1950 by 0.1 degrees celcius to 0.2 celcius a decade, five Antarctic ice shelves have retreated dramatically over the past 50 years and others have broken up, at Macquarie Island just north of Antarctica sea temperatures have risen by more than 1 degree celcius since 1912, pine trees in northern Finland have taken root in tundra areas at the rate of about 40 metres per year in an apparent response to warmer temperatures, tropical corals which are sensitive to wate r temperaturesShow MoreRelatedGlobal Warming And The Warming1544 Words   |  7 PagesGlobal warming has become a well conversed topic among scientists and peoples in the world today. There are extremists who do everything possible to stop contributing to the warming, but the average person does little to alleviate the issue and in many cases refuses to acknowledge that there is a problem at all. Dating back to millions of years ago, even before humanity was born, the world has always experienced one form or another of warming; so the warming seen today is not as bizarre as many mayRead MoreGlobal Warming And The Warming1353 Words   |  6 PagesGlobal Warming With it being the presidential election season the talk of global warming, also known as climate change has come up in conversation more. But should it be associated with whether you are republican or democrat? Global warming should not be rather you â€Å"believe† in because it is a stated fact. The definition by Oxford Dictionary declares that global warming is a gradual increase in the overall temperature of the earth s atmosphere generally attributed to the greenhouse effect causedRead MoreThe Warming And Global Warming1442 Words   |  6 PagesThe Warming World Around Us The world is warming and we cannot deny it, the longer we deny the larger the problem it will become. Global warming is affecting the world economy, the overall health of the population, and most importantly the environment that surrounds us. Ignoring this problem will not just make it suddenly disappear; the world has to make an effort to stop it while it can still be maintained. Accepting the fact that it is happening is just the first step, the next step is takingRead MoreGlobal Warming1677 Words   |  7 PagesThrough the eyes of most scientists, global warming is seen as a very serious and severe threat. 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Humans contribute to global warming yet non-believers will think otherwise. Global warming is the greatest challenge facing our planet. According to the IPCC (Intergovernmental Panel of Climate Change) mostRead Moreglobal warming1539 Words   |  7 Pagesof global climate over long periods of time. Climate model projections made by the US Intergovernmental Panel on Climate Change (IPCC) show that, recently, global temperature has increased. This increase in temperature is referred to as global warming. One of the main causes of global warming is greenhouse gases. Greenhouse gases are gases in the atmosphere that absorb solar radiation to keep the planet warm. These gases have increased, so more solar radiation is trapped ins ide raising global temperaturesRead MoreGlobal Warming1050 Words   |  5 PagesTake a position: Global warming is a real problem. 1000 word Essay. Using persuasive technique Global warming is the increase in the average temperature of Earth’s surface. Since the late 1800’s, the global average temperature has increased about 0.7 to 1.4 degrees F (0.4 to 0.8degree C). Climate change is happening and its effects are real. However, the larger the change in climate, the more negative the consequences will become. Global warming will make life harder for mostRead MoreGlobal Warming1192 Words   |  5 PagesGlobal Warming Essay Global warming is an important issue for humans to consider and science to figure out. Personally I don’t care very much about global warming and have never been active in green movements. The evidence presented in this class is very informative and useful when taking into account the numerous known and unknown causes and cures for global warming. However, my attitude towards global warming is unchanged. According to the Common Attitudes Toward Global Warming handout I think