... simply, ice-core research involves drilling deep into the glacial ice in places such as Greenland and Antarctica and analysing the air trapped in the ice. This research shows that carbon dioxide concentration in the atmosphere has remained relatively constant up until about 300 years ago. Since CO2 measurements started in the late 19th century, CO2 levels have risen 20% (Kimball, ... process on the planet. Without it, we would have no food, no oxygen, and no fossil fuels. Photosynthesis is performed mainly by higher-level plants and algae. These organisms convert carbon dioxide in the a...

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... consumption of fossil fuel has increased dramatically. The world now burns at least five billion tons of fossil fuel each year. As this carbon dioxide from burning fossil fuels enters the atmosphere, some of it is taken up by photosynthesizing plants, and the oceans absorb some. But because ... , motorcycles, and lawnmowers all burn gasoline, which is extracted from oil. Energy is one of the quickest ways to reduce the buildup of carbon dioxide in the atmosphere. If we really want to control the greenhouse effect and global warming, then people everywhere must learn to use energy more .....

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... consumption of fossil fuel has increased dramatically. The world now burns at least five billion tons of fossil fuel each year. As this carbon dioxide from burning fossil fuels enters the atmosphere, some of it is taken up by photosynthesizing plants, and the oceans absorb some. But because ... , motorcycles, and lawnmowers all burn gasoline, which is extracted from oil. Energy is one of the quickest ways to reduce the buildup of carbon dioxide in the atmosphere. If we really want to control the greenhouse effect and global warming, then people everywhere must learn to use energy more .....

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... active volcano can reach up into the atmosphere and reflect solar radiation, essentially dimming the sun. Along with the ash comes carbon dioxide. The large amount of carbon dioxide that is coming out of volcanoes can affect local climate. Globally the carbon dioxide emitted by volcanoes is 200 million tons annually (USGS, 2007). Furthermore the changes in solar radiation will result in more radiation ... effect may be a natural cause, but the air pollution of humans has increased its ability to retain heat. Since the Industrial Revolution the levels of carbon dioxide, nitrous oxide, and...

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... the average temperature of the world increased by 1.2o C. Another natural cause is volcanic eruptions. During volcanic eruptions, immense quantities of carbon dioxide, water vapour, sulphur dioxide, dust and ash are released into the atmosphere. Sulphur dioxide reacts with water to form sulphur-based particles in the atmosphere. Together with ash and dust, these particles reflect solar energy back ... for agriculture also contributes to climate change. Agriculture includes cultivating the land to produce crops and raising livestock. It produces several types of greenhouse gases in differ...

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... are burned. Emissions from incinerators, waste treatment plants, electric power plants, factories, household furnaces, cars and buses are all contributors to this problem. (Stegar/Bowermaster 1990) Carbon dioxide is recovered from the atmosphere in photosynthesis and reused. After excretion, waste products are broken down and reconstituted as foods in the soil. Water, minerals and other chemicals ... now occur at two to three times the rate the world's oceans and forests can absorb them - leading to steady increases in atmospheric concentrations of heat-trapping gas carbon dioxide. Glob...

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... change (Keller, 1999). The earth's climate is predicted to change because human activities are altering 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 uncertainty exists about exactly how earth's climate responds to these gases, global temperatures are ... Geographic, 1990). Some scientists do not believe this. Over 17,000 scientists have signed a petition saying, in part, "there is no convincing scientific evidence that human relea...

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... change (Keller, 1999). The earth's climate is predicted to change because human activities are altering 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 uncertainty exists about exactly how earth's climate responds to these gases, global temperatures are ... Geographic, 1990). Some scientists do not believe this. Over 17,000 scientists have signed a petition saying, in part, "there is no convincing scientific evidence that human relea...

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... atmosphere has increased by 30 percent since 1750,(p.555). Increasing concentration of greenhouse gases is likely to accelerate the rate of climate change. As the textbook reported, unless we reduce carbon dioxide emissions, the average temperature of the earths surface may increase by 3 or 4 degree over the next 75 years,(p.555). Once, all climate changes occurred naturally. However, we began altering ... to avoid, and to better understand the risks associated with climate change. For instance, the author of Environmental Quality in Japan wrote, The increasing concentrations in the air...

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... : Fact or Fiction What is global warming? Global warming is the common scientific belief which states that man is producing greater and greater amounts of "Green House Gasses" such as carbon dioxide and methane, which trap the suns heat inside our atmosphere, heating up the planet to dangerous levels. This largely excepted scientific belief isn't scientific at all. It is merely nonsense ... eventually returns to its original patterns, and that we are "misunderstanding " global weather patterns (NASA Earth). Dr. Ellen Mosley-Thompson, a research scientist at the Byrd Polar Research Center...

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... why temperatures and the global climate have steadily risen over the past few years. The predominant belief behind the idea is that human activity and toxic gas emissions, such as carbon dioxide, have increased exponentially since the Industrial Revolution. Gasses have begun to trap heat within our atmosphere and as a result have caused the global temperature to rise. However, in the ... of energy production used worldwide based solely on the fear of man-made global warming. The petition also states that, "There is no convincing scientific evidence that human release of carbon dioxide,...

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... Industrial Revolution brought about a massive change in the world's atmosphere. The world began altering the climate and environment through agricultural and industrial practices. The cause is a thickening layer of carbon dioxide pollution, mostly from power plants and automobiles that traps heat in the atmosphere. Global temperatures increased by about 1 degree Fahrenheit over the course of the last century, and will likely ... of these natural causes of temperature variations are unknown and unpredictable at the present. Sunspots are a significant factor. Human caused warming is by incr...

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... oil, natural gas impacts on natural climate significantly because of the huge needs of transportation, heating, manufacturing, cooling, electricity generations. (Ibid., p.190) The production of carbon dioxide have increased rapidly and around 80 to 85% carbon dioxide has been produced. (Ibid., p.190) In addition, land use changes is also a problem. The purpose of clear-cutting is always for logging, ranching, and ... agriculture. (Ibid., p.190) Substantially, deforestation and other land use changes have already increased the carbon dioxide in atmosphere and this still happens in some tr...

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... inches has resulted from the expansion of the ocean water as a result of the warmer ocean temperatures. Scientists believe that the increase in greenhouse gas concentration, especially of carbon dioxide, is being caused by the combustion of fossil fuels and other human activities. Fossil fuels burned to run cars and trucks, heat homes and businesses, and power factories are ... responsible for about 98% of the total U.S. emission of carbon dioxide, 24% of the methane emissions and 18% of nitrous oxide emissions. Also contributing a significant share of emissions is the increase in agric...

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... inches has resulted from the expansion of the ocean water as a result of the warmer ocean temperatures. Scientists believe that the increase in greenhouse gas concentration, especially of carbon dioxide, is being caused by the combustion of fossil fuels and other human activities. Fossil fuels burned to run cars and trucks, heat homes and businesses, and power factories are ... responsible for about 98% of the total U.S. emission of carbon dioxide, 24% of the methane emissions and 18% of nitrous oxide emissions. Also contributing a significant share of emissions is the increase in agric...

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... inches has resulted from the expansion of the ocean water as a result of the warmer ocean temperatures. Scientists believe that the increase in greenhouse gas concentration, especially of carbon dioxide, is being caused by the combustion of fossil fuels and other human activities. Fossil fuels burned to run cars and trucks, heat homes and businesses, and power factories are ... responsible for about 98% of the total U.S. emission of carbon dioxide, 24% of the methane emissions and 18% of nitrous oxide emissions. Also contributing a significant share of emissions is the increase in agric...

• Word Count: 1177
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... inches has resulted from the expansion of the ocean water as a result of the warmer ocean temperatures. Scientists believe that the increase in greenhouse gas concentration, especially of carbon dioxide, is being caused by the combustion of fossil fuels and other human activities. Fossil fuels burned to run cars and trucks, heat homes and businesses, and power factories are ... responsible for about 98% of the total U.S. emission of carbon dioxide, 24% of the methane emissions and 18% of nitrous oxide emissions. Also contributing a significant share of emissions is the increase in agric...

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... started burning fossil fuels heavily since the industrial revolution, and the fact that the world's population is only going to increase, this number is dauntingly enormous. Increased carbon dioxide in the atmosphere may alter the surface temperature through the "greenhouse" effect, which is capable of changing the ground terrain, from melting glaciers to expanding tropics and ... or water as vehicles. Climate change would change our ecology with respect to biodiversity, nutrient cycle, physical relocation, internal defence systems, and transmission dynamics within microbes. Increased c...

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... the atmosphere when they burn fossil fuels, solid wastes, drive vehicles, and generate electricity by the burning of coal. At the same time, the number of trees available to absorb carbon dioxide through photosynthesis has greatly reduced by deforestation, the long-term destruction of forests by many cutting of trees for lumber or to clear land for agricultural activities. The earth warming ... of them turn it generates enough electricity to power a small city. And if more cities would replace coal burning electric plants with wind turbines this would reduce enormous amounts of carbon d...

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... and climate, and heats the earth's surface and in turn the earth radiates energy back into space. Greenhouse gases, such as water vapor, carbon dioxide, and other gases, trap some of the outgoing energy, retaining heat. Without this natural greenhouse effect temperatures would be much lower than they are ... The greenhouse gases than make the atmosphere trap this radiation causing it to warm up the Earth more than it should. Gases, such as carbon dioxide, methane, water vapor and nitrous oxide all build up in the atmosphere. Each greenhouse gas differs in its ability to absorb heat in .....

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... of the amount of greenhouse gases humans are pouring into the atmosphere. Human activities have altered the chemical composition of the atmosphere through the buildup of greenhouse gases, primarily carbon dioxide, methane, and nitrous oxide. Much of the scientific community believe that these gases are causing unnatural climate warming that could have unimaginable effects on life (Schnieder, 21 ... of livestock. Nitrous oxide is emitted during agricultural and industrial activities. Greenhouse gas absorbs heat in the atmosphere. Since the beginning of the industrial revolution, atmospheri...

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... increase the earth's albido, thus cooling the global climate. The focus of international climate change negotiations has been the emission of greenhouse gasses, particularly carbon dioxide, into the atmosphere. Without these greenhouse gasses, such as ozone, carbon dioxide, water vapor and methane, our planet would be much colder than it is today. (Cunningham, 2000) During pre-industrial times, levels of greenhouse ... of so-called "natural- events. For example, prior to the proliferation of land-based green plants, carbon dioxide levels in the stratosphere were much higher. These high l...

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... result we are faced with a climate shift. This shift creates hurricanes, typhoons, droughts and tornadoes to occur in unusual locations. Carbon dioxide and fossil fuel are at high levels. The more carbon dioxide released the warmer temperatures become.   The   disappearing canals, trees, and animals are key indicators of global warming. The ... everyday then some of the rays stay inside the earth with the help of ozone layer to keep it warm. The crazy increase of carbon dioxide ratio has made the layer thicker so more rays are trapped more than we normally need. As a result, a lot of ...

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... . Tamara L. Roleff, writer of Global Warming; Aposing Viewpoints, states that over the last hundred years, green house gases in the atmosphere increased by the equivalent of a fifty percent rise in carbon dioxide. Given the increase, the models used by Intergovernmental Panel on Climate Changes (IPCC) would predict a warming of about two degrees over the same hundred year period. But as seen, the ... by Hugh Ellasaessar of Lawrence Livermore Laboratories that should trouble the calamity theorists: most of the past century's warming trend took place by 1938, well before the rise in the ca...

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... global temperatures. Natural events and human activities are believed to be contributing to an increase in average global temperatures. This is caused primarily by increases in "greenhouse " gases such as Carbon Dioxide (CO2). A warming planet thus leads to a change in climate which can affect weather in various ways, as discussed further below. 2. What Are Global Warming And Climate Change? 2.1 What ... natural climate variability observed over comparable time periods. 2.2 What Is Global Warming? Global warming is the increased heat trapped in the earth's atmosphere resulting from exce...

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