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Global Warming - Essay

Global Warming

Global warming means the rise in the mean global temperature to a level which affects the life-forms on the earth surface. The factors responsible for this warming may be both natural and man made. Warming of the globe due to natural factors is not an unusual phenomenon.

The earth's climate is variable. For example, about 18,000 years ago, the earth was about 5°C cooler than it is today. That was the last glacial period on the earth. There after, the global temperature began to rise.

The earth is kept warm due to what is known as the green house effect. Without it the earth would be a frozen waste land. The short wave lengths or ultraviolate radiation coming from the sun penetrates ...

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energy.

The increase in the quality of the greenhouse gases in the atmosphere can reinforce the greenhouse effect (increase in temperature of the earth) and lead to global warming. Carbon dioxide is the largest contributor to the global warming as it holds the largest share among the green house gases in the atmosphere. The reason behind it is natural disorder as well as man made activities.

Volcanic eruptions and forest fire are some of the natural reasons which cannot be checked. But the current global trend i.e., deforestation, along with increased combustion of fossil fuels have a cumulative effect on the net increase in carbon dioxide content. We know forests are the areas where the green leaves efficiently utilize carbon-dioxide to make their own food. Deforestation reduces this utilization of carbon dioxide.

Consumption of fossil fuels and house hold fuels gives off considerable amount of carbon dioxide. Hence, reduction in the use of fossil fuels is very ...

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Global Warming. (2012, July 2). Retrieved April 4, 2026, from http://www.essayworld.com/essays/Global-Warming/101236

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PAPER DETAILS

Added: 7/2/2012 06:47:01 PM
Submitted By: jenjen
Category: Science & Nature
Type: Premium Paper
Words: 495
Pages: 2

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