Improve Outline

Global warming

Introduction:

1. Global warming is become the most serious problems in the world.

2.  Many diseases will spread more quickly in a warm environment, such as AIDS, HPAI and SARS.
3. Climate change is increasing the intensity of extreme weather events. ( from Environment Newspaper)
  . Guess what the biggest reason that causes global warming is.

Body I:

Global warming has a large effect on agriculture which is necessary to support of human life.

Body II:

There is no doubt that transportation has greatly contributed to global warming.

1. Carss will produce kinds of chemical gas, such as CO, HC, HOx, Pb.

2. Carbon dioxide creates a series of reactions.

3. Refrigerators and air conditioners need a substance called Freon in past few years, but it was not popular anymore.

Body III:

Deforestation is a controversial reason causing the global warming.

Who did the deforestation? Why they deforestation?

1. 25 and 30 percent of the greenhouse gases released into the atmosphere each year -1.6 billion tons - is caused by deforestation.

2. Trees can be used to burn for house heating.

Conclusion:

As far as I am concerned, global warming is the necessary part of economic development, but it is not taken seriously nowadays. This is human caused and has serious consequences.

Resource:

1.  Unger, N. (2009). Transportation Pollution and Global Warming. Retrieved from http://www.giss.nasa.gov/research/briefs/unger_02/

2.  Rome. (2006, September.4). Deforestation causes global warming.

3.  Rubin, M, B. (2001) .The History of Ozone. Retrieved from http://en.wikipedia.org/wiki/Ozone

4. (2009). Ends Warmest Decade on Record. NASA Earth Observatory Image of the    

  Day, 22 January 2010. Retrieved from http://en.wikipedia.org/wiki/Global_warming

5. Wikipedia (2001). Radiation Pressure .Retrieved from https://en.wikipedia.org/wiki/Radiation_pressure.

6. Wikipedia (2013, April, 25). Global Warming. Retrieved from http://en.wikipedia.org/wiki/Global_warming

7.  Global Warming-The Scientist Magazine