King
Chan Woong Park
Physics 10
Prof. Quan
29 September 2013
Greenhouse Effect
Today, the world is suffering because of the global warming, and this phenomenon has a relationship with Green House effect. First of all, the principle of green house effect is based on the wave length of radiation. Higher temperature objects emit radiation that has short wavelength. On the contrary to this, lower temperature objects emit radiation that has longer wavelength. Based on this fundamental, people can raise any crops in any seasons in greenhouse. The radiation coming from sun easily can go through glass, but after the radiation came inside, it cannot easily leave the greenhouse. This phenomenon shows that a radiation which is coming from sun can easily pass the glass of greenhouse, but after they reflected on the surface inside, their wavelength gets longer, so the radiation cannot escape the greenhouse go through its glass that they just passed. That means heat energy pass through the glass of greenhouse easily to the inside, but the heat energy cannot escape easily which causes increasing temperature of inside. As this example says, radiation from the sun can easily go through earth's atmosphere, but cannot leave the earth easily, therefore the temperature of earth goes higher. One more important thing about this phenomenon is a role of several greenhouse gases, which are CO2, CH4, N2O, HFC, PFC, and SF6, and those gases are arranged by Kyoto Protocol. Among those gases, the most famous gas that known as a cause of greenhouse effect is CO2, which is carbon dioxide. This gas is might familiar to the recent people. The reason why carbon dioxide causes the greenhouse effect is that the gas absorbs infrared ray, therefore the heat energy cannot leave from earth, so the whole world is trying to reduce the carbon dioxide. There are many things that can produce carbon dioxide. First of all, the biggest reason is fossil fuels. If fossil fuels is burned, then it produces much
Physics 10
Prof. Quan
29 September 2013
Greenhouse Effect
Today, the world is suffering because of the global warming, and this phenomenon has a relationship with Green House effect. First of all, the principle of green house effect is based on the wave length of radiation. Higher temperature objects emit radiation that has short wavelength. On the contrary to this, lower temperature objects emit radiation that has longer wavelength. Based on this fundamental, people can raise any crops in any seasons in greenhouse. The radiation coming from sun easily can go through glass, but after the radiation came inside, it cannot easily leave the greenhouse. This phenomenon shows that a radiation which is coming from sun can easily pass the glass of greenhouse, but after they reflected on the surface inside, their wavelength gets longer, so the radiation cannot escape the greenhouse go through its glass that they just passed. That means heat energy pass through the glass of greenhouse easily to the inside, but the heat energy cannot escape easily which causes increasing temperature of inside. As this example says, radiation from the sun can easily go through earth's atmosphere, but cannot leave the earth easily, therefore the temperature of earth goes higher. One more important thing about this phenomenon is a role of several greenhouse gases, which are CO2, CH4, N2O, HFC, PFC, and SF6, and those gases are arranged by Kyoto Protocol. Among those gases, the most famous gas that known as a cause of greenhouse effect is CO2, which is carbon dioxide. This gas is might familiar to the recent people. The reason why carbon dioxide causes the greenhouse effect is that the gas absorbs infrared ray, therefore the heat energy cannot leave from earth, so the whole world is trying to reduce the carbon dioxide. There are many things that can produce carbon dioxide. First of all, the biggest reason is fossil fuels. If fossil fuels is burned, then it produces much