Approximately every 100‚000 years Earth’s climate warms up temporarily. The Earth is in a warming period since the Ice Age. The warming periods called glacial periods cause the Earth to retrogress back to a cold ice age climate after a couple of years. This leads to the growing debate of today‚ Is global warming caused by humans? Or caused naturally? This is a controversial issue and debate today‚ however‚ global warming is not man-made‚ in fact‚ it is a normal and natural cycle for the Earth and the carbon
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Global Warming “The Earth ’s climate has changed throughout history. Just in the last 650‚000 years there have been seven cycles of glacial advance and retreat‚ with the abrupt end of the last ice age about 7‚000 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives.” (NASA.GOV) Going through the history in our planet’s
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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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Our only home is the earth. “And that’s what is at stake‚ our ability to live on planet earth‚ to have a future as a civilization. I believe this is a moral issue‚ it is your time to cease this issue‚ and it is our time to rise again to secure our future‚” said former Vice-President Al Gore. Al Gore made a speech about global warming and said how to keep it healthy. The earth can be kept healthy and exist longer without global warming. Global warming is becoming a popular topic around the world
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Global Warming: The Causes‚ Effects and the Human Influence Global warming refers to the rise in temperature of the earth’s surface. There exists an intricate ecological balance within the earth’s atmosphere. Slight increase in the temperature of the earth’s surface creates a serious ecological imbalance with far reaching consequences on earth’s aspect of life. The activities that contribute to such a change on earth are much likely attributable to humans. Earth is being effected highly by green
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Global Warming xxxxxxxxxx xxxxxxxxx SCI207: Dependence of Man on the Environment (GSM1312A) Instructor: Benjamin Kirgan 4-21-2013 Global warming is not a new subject‚ over the years we have heard a lot about all the different effects that global warming can have on our planet. Many people wonder if global warming is happening at all and if it is happening‚ can it really hurt us. Many scientist claim that the human race is to blame for global warming‚ while others claim that the human race
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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 are many
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Global warming refers to the rising average temperature of Earth’s atmosphere and oceans‚ which started to increase in the late 19th century and is projected to keep going up. Since the early 20th century‚ Earth’s average surface temperature has increased by about 0.8 °C (1.4 °F)‚ with about two thirds of the increase occurring since 1980.[2] Warming of the climate system is unequivocal‚ and scientists are more than 90% certain that most of it is caused by increasing concentrations of greenhouse
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GLOBAL WARMING : WHAT LIES AHEAD GLOBAL WARMING Climate change is a change in the statistical distribution of weather over periods of time that range from decades to millions of years. In recent usage‚ especially in the context of environment policy‚ it is more generally known as "global warming"‚ which occurs due to increasing levels of greenhouse gases in the atmosphere. Most of the observed temperature increase has been caused by increasing concentrations of greenhouse gases‚ which result
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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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