| What Is Light Pollution? | | | | our eyes can see at night(Bakich, 2009, p.58). |
| No one can give the exact | | | | Drivers, who drive at night, |
| definition of light pollution but if the kinds are | | | | need to see the road perfectly. Rather than using |
| known, then it is possible to define the problem. | | | | streetlights to lit the dark areas in the roads, |
| As what Bakich mentioned in his article, light | | | | reflectors are recommended to be used so the |
| pollution has three types: needless light comes | | | | pollution will be reduced. Also reflectors are much |
| inside people's properties(light trespass), high | | | | more cheaper and they cost nothing(Bakich, 2009, |
| deference between lit and unlit areas(glares) and | | | | p. 58). |
| ugly designed light groups(clutter)(2009,p.56). | | | | Conclusion |
| What Are The Causes And What Do They | | | | In other words, people must |
| Affect? | | | | cooperate together to stop polluting their world |
| There are many sources of | | | | and start a clean, beautiful and worthy life. The |
| light pollution and they are easy to be recognized. | | | | time is running and the issue will never stop by |
| Streetlights, for example, are the famous source | | | | itself. As what Mr. Bakich said "with just a little bit |
| of light pollution because the light they produce is | | | | of thought and effort, light pollution is one type of |
| not exactly directed to the street. This causes | | | | environmental problems that can be cleaned up |
| lots of distributed light quantities which pollutes the | | | | without any side effects"(2009, p. 58). |
| sky. Billboard light is a good way to waste the | | | | Recommendations |
| beauty of the sky & people's money(Serling, | | | | Through a half century ago, |
| Bunch & Jones, 2009, p.38). Actually, these | | | | Saudi Arabia has become one of the leading |
| sources are using a lot of energy to produce light. | | | | industrial countries in the Middle East. Many |
| To get that energy, electricity companies need to | | | | factories, stations and industrial cities have been |
| burn tons of petrol which will rise amount of | | | | established and built. Most of light used to lit these |
| carbon dioxide to the atmosphere. This in turns | | | | places is useless. The government needs to take |
| leads to the global warming(Astaire & Lot, | | | | care of this problem to prevent the occurrence |
| 2008, p. 3). | | | | of light pollution in the world. Some may say the |
| How Can This Problem Be Solved? | | | | world will not be affected by our carelessness. |
| It is easy to find a solution but | | | | Actually, what affects one place has the chance |
| people must be educated first. This is the | | | | to affect other places(Serling et al, 2009, p.38). |
| government's responsibility to educate people and | | | | |
| give them the solutions. Actually, people need to | | | | |
| be told about the major effects and how that | | | | |
| issue can affect them. After that long educating | | | | |
| process, everything will be changed easily. | | | | References |
| One of the solutions is to use | | | | |
| motion sensors. Some people keep the light of | | | | - Bakich, M. (2009, Feb). Can we win |
| their houses lit for a long time without switching it | | | | the war against light pollution?. Astronomy, 37(2), |
| off. Using a motion sensor will help them to lit | | | | PP. 56-58. Retrieved March 31, 2009, from |
| their houses at night automatically. Sometimes, | | | | Academic Search Premier database. |
| people have small things to do | | | | |
| | | | | - Serling, R., Bunch, B. & Jones, |
| during the night and they don't need to use the | | | | S. (2009, Jan). All That Glitters Is Not Gold. New |
| light. They should get used to the dark, in fact, | | | | Scientist, pp. 36-38. |