Global warming refers to an unequivocal and continuing rise in the average temperature of Earth’s climate system.[2] Since 1971‚ 90% of the warming has occurred in the oceans.[3] Despite the oceans’ dominant role in energy storage‚ the term "global warming" is also used to refer to increases in average temperature of the air and sea at Earth’s surface.[4][5] Since the early 20th century‚ the global air and sea surface temperature has increased about 0.8 °C (1.4 °F)‚ with about two-thirds of the increase
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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 A common topic known worldwide as controversial and challenging is global warming. Many people do not know the cause and effect between man-made activities‚ practices‚ and behaviors that have contributed significantly to global warming. All nations should be required by law to curtail‚ modify‚ or stop such activity. A great difference in climate change will occur if people around the world became aware of their actions to achieve a more stable and safer environment. Scientists
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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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General Purpose: To persuade Specific purpose: After listening to my speech‚ my audience will know how they can change their lives for a bigger challenge – to save the world. Thesis: Knowing what a problem nowadays is global warming‚ how CO2 gas affects it and how can we change it. Title: Lifestyle to make some changes INTRODUCTION I. Attention Material: Question “Do you know that using cars for the
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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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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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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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