biggest threat to life on earth comes from global warming. Rich industrialised countries in the West have been burning fossil fuel such as coal‚ oil and gas for about 150 years‚ pumping out vast quantities of carbon dioxide. This gas traps the heat from the sun and causes the Earth and the atmosphere to get warmer. This is called the greenhouse effect. So why global warming is a problem? Well‚ high level of these greenhouse gases in the atmophere causes climate changes‚ which also lead to ocean
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THE EFFECT OF GLOBAL WARMING Introduction One of the most agent controversial topics that are discussed in the world is global warming. Global warming and its effects are real and various scientists unlock the past mysteries and analyze today’s activities‚ they issue warnings that the future generations will be in jeopardy. Overwhelming evidence that the world’s climate is changing due to various human activities exists. Since the industrial revolution‚ various human activities such as agriculture
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Global warming by Class: Teacher: Table of contents Outline……………………………………………………………………………………pg3 Introduction……………………………………………………………………………pg4 What is Global Warming and how is it formed.........................pg5 Causes and Effects of global warming……………………………………..pg6 Green houses gases and its sources…………………………………………pg7
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------------------------------------------------- Global warming Global warming is the rise in the average temperature of Earth’s atmosphere and oceans since the late 19th century and its projected continuation. Since the early 20th century‚ Earth’s mean 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 it is primarily caused by increasing
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Global Warming: An Introduction 1. What is global warming A. How it happens B. When it happens 2. When and how did it start A. For how long has it existed B. When was it officially addressed C. The pace its moving at 3. What are the causes of global warming A. Natural causes B. Man-made causes 4. What are the effects of global warming A. Effects of global warming on the seas and oceans B. Increase in fires C. Economic consequences
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Throughout the world the issue of global warming has become an increasingly important issue. Global warming has been an issue that has been heatedly debated for many years. Scientists all over the world have been debating weather global warming actually exists. If it exists some scientists believe it is natural. While others believe it is caused by humans. Global warming is defined as an average increase in temperature in the atmosphere near the earths surface and in the troposphere. Which can
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Global Warming Global warming means a gradual increase in the Earth’s average lower atmosphere due to emissions and build up of greenhouse gases . Global warming is when the earth heats up and the temperature rises. It happens when greenhouse gases such as carbon dioxide‚ water vapor‚ nitrous oxide‚ and methane trap heat and light from the sun in the earth’s atmosphere‚ which increases the temperature. Most greenhouse gases are released by the burning of fossil fuels for heating‚ cooking‚ electrical
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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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Evidence:There is a lot of evidence pointing to the futures problems with global warming. First is the rise in temperature we have already had in the last ten years alone the average global temperature has risen more than one degree F. Based on estimates last year(2006) by NASA’s Goddard Institute for Space Studies‚ 2005 was the warmest year since reliable‚ widespread instrumental measurements became available in the late 1800s. About three-quarters of the anthropogenic (man-made) emissions of CO2
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Unimaginable Destruction Global warming is not a sci-fi creation‚ but a harsh reality that may one day lead to the extinction of many species including mankind if preventative measures are not taken. Like most diseases humans face‚ early detection is key to treating and preventing the problem from escalating out of control. If measures to combat global warming are not taken immediately the earth may become uninhabitable and ruined forever. Although the earth has gone through natural climate changes
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