Today,light from Los Angeles makes the night sky above Mount Wilson very bright.It is no longer all important research center because of light pollution.
Light pollution threatens to reduce the scientific value of research telescopes in other important observatories.They include Like Observatory near San Jose,California and Yorkers Observatory near Chicago,Illinois.
Light pollution is the result of wasted energy.Bright light,that shines into the sky is nol being used to provide light where.it is needed Oil Earth.Poorly designed lighting causes a great deal of light pollution.Lights that are brighter than necessary also cause light pollution.
Recently,two Italian astronomers and an American environmental scientist created a world map of the night sky。
The map shows that North Ameriea,Western Europe and japan have the greatest amount of light pollution。
Most people in America are surprised to find out,that they are able to see our OWn galaxy,the Milky Way,with their own eyes。But about threefourths of Americans cannot see the Milk),Way because of manmade light.
Objects in the night sky are resources that provide everyone with wonder.But light pollution threatens to prevent those wonderful sights from being seen。
1.According to the passage,the idea of light pollutionhas come with the increase of lights in cities.
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