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Global Warming - the Greenhouse Effect

Autor:   •  July 14, 2011  •  Essay  •  405 Words (2 Pages)  •  1,144 Views

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Global warming had been a problem to our planet and one of the factor causing it to happen is greenhouse effect. Greenhouse effect happen when the gases trap the heat that have been release by the earth. The director of the National Climatic Data Center, Thomas R. Karl said that the carbon dioxide is the prime greenhouse element that have been accused for the cause of this problem by scientists.

Because of the greenhouse effect, the climate is warming up. According to Jey Gulledge, the director of Science & Impacts Program, he said that the climate change is one big key for the extreme weather. Karl also added in NOAA, the ice sheet that melt in the world suprisingly increase it volume. It is more than the years before it. Global warming not only effect the ice sheet but it cause some other disasters in other place. For example, the lake surface has increase their temperature, the Alpine glacier shrank and the rise of sea level. In the nut shell, the greenhouse gases has made the global warming that effect the life in earth which lead to the terrifiying situation more faster.

As much as i have learn in my lecture for subject MTC 088, the true definition of greenhouse effect is the natural warming process of earth. When the sun’s energy reaches the earth, some of it is reflected back to space and the rest is absorbed. The absorbed energy warms the earth surface which then emits heat energy back toward space as longwave radiation. This outgoing longwaves radiation is partially trapped by the greenhouse gases such as carbon dioxide methane and water vapour which then radiate the energy in all direction, warming the earth’s surface and atmosphere. So this is what that i have learn about the definition of greenhouse effect. In addition, the greenhouse gases include water vapour, carbon dioxide,methane, nitrous oxide and ozone. This gases come from the human activity and also the natural sources.

The Intergovernmental Panel on Climate Change(IPCC),

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