we are now facing a serious crisis on our nature; the crisis of global warming. Global warming itself is a term used to describe the change of the temperature of the earth that can finally change the climate on earth. We have known it for a long time that our earth is becoming hotter year by year. There are a lot of things that can cause global warming. Air pollution is one of the causes that can increase the effect of global warming. Air pollution is caused by certain gases which pollute the air
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Global warming There are already many natural disasters‚ for example earthquakes in Mexico or floods in Pakistan‚ probably the first effects caused by global warming. But that is just the beginning; the number of natural disasters will increase in the future. In my speech I tell you something about global warming and what we can do to prevent it. At first I define the term “global warming”: It is the change of the climate caused by the people for example the destruction of the ozone layer and the
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Global warming Global warming the biggest threat in 21st century Introduction The term global warming has been common in the fields of whether and climate. The term does not posses the literal meaning as such but simply implies change in climate. The change in climate is attributed to overall rise in average temperatures of the universe. This poses a great threat to mankind (Korgen‚ 2007). The dangers attributed to global warming include health issues‚ scarcity of some vital natural resources
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Thesis: Global warming is a human induced phenomenon causing a dramatic rise in average global temperatures and posing a major threat to our planet and it’s ecosystems. Points of Evidence: The science is clear: Human activity is causing our climate to change. -When we extract and burn fossil fuels such as coal or petroleum‚ we cause the release of carbon dioxide (CO2) and other heat-trapping “greenhouse gasses” into the atmosphere. Though natural amounts of CO2 have varied from 180 to 300
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This phenomena has been given the title global warming‚ and has sparked a new debate in local‚ state‚ national‚ and world policy. Since the end of WWII the United States has played the role of international policeman. As one of the strongest economic‚ political‚ and economic powers in the world the United Nations Special committee on Global warming research has also made us the leading emissions releaser in the world‚ with approximately one fifth of all global emissions coming from our country. There
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Abstract This report studies secondary research to discover the effects of global warming and the consequences it has on sea levels‚ ice melting and the polar bear. Websites researched were NASA‚ ICUN‚ National Geographic‚ BBC News‚ The Independent‚ IPCC‚ Arctic Council‚ National Resources Defense Council‚ UN News and D.V.D. called ‘An Inconvenient‚’ truth. Evidence researched supports the conclusion that scientists believe global temperatures have been rising and that human activity is a significant
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CAUSES OF GLOBAL WARMING: Global warming also causes sea surface temperatures to rise‚ precipitation patterns to change‚ etc.. (NASA‚ 2002) Global warming can have many different causes‚ but it is most commonly associated with human interference‚ specifically the release of excessive amounts of greenhouse gases. (EPA‚ 2006) Global warming is caused by excessive quantities of greenhouse gases emitted into Earth’s near-surface atmosphere. Greenhouse gases are both man-made and occur naturally
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Introductory Note‚ 327-35. Friend‚ J. P. (1973). Chemistry of the Lower Atmosphere. New York: Plenum Press. Graedel‚ T. E. (1978). Chemical Compounds in the Atmosphere. New York‚ NY: ACADEMIC PRESS‚ INC. Hansen‚ J. E. (1989). The Challenge of Global Warming. Washington: Island Press. Heicklen ‚ J. (1976). Atmospheric Chemistry. New York : Academic Press. Hudson‚ R. D. (1977). Chlorofluoromethanes and the Stratosphere. Greenbelt‚ MD: NASA Ref. Pub. King‚ S. D. (2008). The Hot Topic. Great Britain:
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Global Warming The greenhouse effect‚ in environmental science‚ is a popular term for the effect that certain variable constituents of the Earth ’s lower atmosphere have on surface temperatures. It has been known since 1896 that Earth has been warmed by a blanket of gasses (This is called the "greenhouse effect."). The gases--water vapor (H2O)‚ carbon dioxide (CO2)‚ and methane (CH4)--keep ground temperatures at a global average of about 15 degrees C (60 degrees F). Without them the average
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Abstract What is global warming? Global warming is the heating of the earth. Global warming happens when greenhouse gases such as carbon dioxide‚ water vapor‚ nitrous oxide‚ and methane trap heat and light from the sun in the atmosphere. This is known as the greenhouse effect. It prevents heat and light from escaping the earth’s atmosphere kind of like the earth is a giant greenhouse. Global warming is a good thing‚ but at the same time‚ can have devastating effects if not properly monitored and
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