Essay Title: 

global warming

March 29, 2016 | Author: | Posted in life sciences, physics

Global Warming

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Why do we experience global warming

If some environmentalists are to be believed , we are on the verge of massive global climate change which will see a significant rise in sea levels , chaotic weather patterns , and catastrophic droughts all caused by small increase in global average temperature

I . Introduction

Large tracts of forests worldwide are now being cleared . Some are already cleared for industrial [banner_entry_middle]

or agricultural purposes . The remaining trees may not be enough to absorb the carbon dioxide in the atmosphere The carbon dioxide is used by plants to manufacture food . It is also called a greenhouse gas . This kind of gas retains heat longer compared to other gases . Surface temperature rises as more trees and plants are cut or destroyed . The resulting high surface temperature due to the accumulation of the carbon dioxide is referred to as the greenhouse effect

Carbon dioxide in the atmosphere acts like the glass in a greenhouse It traps heat from the environment . It causes air temperature to rise The glass of the greenhouse prevents warm air from escaping . The air temperature inside the greenhouse rises as a result . This would lead to global warming

Moreover , global warming pertains to an increase of the temperature of the Earth ‘s atmosphere and oceans in these present days . During the 20th century , the atmospheric temperature of the earth increased 0 .6 – 0 .2 HYPERLINK “http /en .wikipedia .org /wiki /Celsius ” \o “Celsius ” Celsius . The upsurge amounts of carbon dioxide and other greenhouse gases are the major causes of the component of warming . They are produced through the burning of agriculture , fossil fuels and land clearing and may precede to an upsurge in the greenhouse effect (see Global Warming Grolier Encyclopedia of Knowledge . Vol . 8 . There is an initial assumption that a greenhouse effect possibly takes place because of the Swedish chemist Svante Arrhenius during 1897 . In addition , climate sensitivity denotes to the equilibrium response to upsurge greenhouse gases and different anthropogenic and natural climate forcing . This will be revealed through observational and model researches . The said sensitivity is generally showed through the temperature response that is anticipated from a doubling of CO2 in the atmosphere . There is a report in 2001 from the Intergovernmental Panel on Climate Change (IPCC that evaluates the climate sensitivity between the scales of 1 .5-4 .5 ?C (see Global Warming . Wikipedia , the free encyclopedia . November 23 2006

The intents of this are to (1 ) understand what global warming really is (2 ) know about the historical warming of the earth (3 figure out the causes of the global warming and (4 ) find out the expected effects of global warming

II . Background

A . What is global warming

Global warming is defined as the increase of average world temperatures as a result of what is known as the greenhouse effect (see Global Warming . This would mean that it… [banner_entry_footer]


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