Global warming is commonly caused by the excessive amount of greenhouse gases in the atmosphere. Greenhouse gases are gases which work the same way as greenhouse, absorbing the heat radiation from the Sun and emitting it back to the Earth’s surface. This process is called the greenhouse effect. Greenhouse gases include carbon dioxide, nitrous oxide, water vapor, methane and Chlorofluorocarbon, commonly called CFCs.
According to Mr. Steffen, “The primary cause of the observed changes in the Earth’s climate are human activities—mainly the burning of fossil fuels” (Steffen, 2013). The process of burning fossil fuel unleashes a huge amount of greenhouse gases, especially carbon dioxide, to the atmosphere, disturbing the balance of greenhouse gases in nature. As stated by World Meteorological Organization, “The accumulation of greenhouse gases in the ...
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...is obvious that climate shift is actually happening. Human activity is considered as the primary cause of the problem. Activities like burning fossil fuel and deforestation are upsetting the climate by interrupting the natural greenhouse gas balance. Global warming has a long term effects in our life. This is a serious concern that actions should be taken immediately before it is too late.
Steffen, W. (2013, September 27). unpacking the ipcc fifth assessment report. Retrieved November 13, 2013, from Climate Council: www.¬climatecouncil.¬org.¬au/¬wp-¬content/¬uploads/¬2013/¬10/-CC.¬report.¬1.¬2.¬pdf
United Nation Evironment Programme - World Meteorological Organization. (2006, May 24). Common questions about climate change. Retrieved January 15, 2009, from the US. Global Change Research Information Office website: http://www.gcrio.org/ipcc/qa/index.htm
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