Global Warming Master Essay

Masters
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Science
Pages 6 (1506 words)
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The dominant scientific opinion is that the earth's average near-surface temperature has risen by 0.6 degrees Celsius in the 20th century, but disagreements persist on what precisely causes global warming and whether its effects represent a real threat to life on earth…

Introduction

Such changes in precipitation then serve to increase the frequency and intensity of extreme weather events like floods, droughts, heat waves, hurricanes and tornados. However, other scientists maintain that man and his carbon dioxide emissions are not solely to blame for the temperature changes, that prediction of these changes is has yet to become 100 percent accurate, and that the perceived temperature rise can never annihilate life on earth. This paper examines the clashing scientific opinions less for the purpose of determining which side presents the stronger arguments but more for drawing the information on the causes and effects of global warming.
The greenhouse effect theory postulates that the gases and carbon dioxide expelled by people through the burning of fossil fuels, land clearing and agriculture collect in the atmosphere and cause the earth's average temperature to rise (Whipple 12). According to this theory, the anthropogenic or manmade carbon dioxide released into the atmosphere in the past 400,000 years doubled since the Industrial Revolution, which was then helped along by the natural changes in the Earth's orbit around the sun to cause global warming (Taylor 8). Increase of such carbon dioxide in the atmosphere warms the Earth's surface and leads to the melting of polar ice caps. ...
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