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Light Pollution

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Complete the text with the missing words.

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Âge recommandé: 15 ans
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Light PollutionVersion en ligne

Complete the text with the missing words.

par Agnieszka Pakula
1

off sustainability solutions Sydney endangered electricity increase wasted environment steps 24 Gate Harbour reduced curfews against 30 outdoor landmarks Coliseum worldwide 2007

Light pollution is the excessive or misdirected lighting that is threatening to destroy virtually all casual stargazing . Throughout much of the United States for instance , millions upon millions of precious watts are because poorly designed streetlamps send a portion of their light into the sky .
Over the past two decades , the in this ubiquitous , overly bright and garish lighting has so polluted the nighttime that driving on some roadways has become downright dangerous because of excessive glare .
Sadly , we are also losing our view of the night sky ? the next natural resource . A generation from now , if the current siege of " light blight " goes unchecked , seeing the stars will be reduced to a museum rendition , with the artificial firmament of your local planetarium becoming our children's only view of the universe .
But there are to this problem . Light pollution can be controlled and even .
As one example , this can be done by investing in more efficient , properly shielded lighting fixtures ; determining systematic criteria for how much lighting is needed in a given situation ; and perhaps even imposing late - night " " on outdoor advertising signs .
You can do your part , by learning more about light pollution , and by taking to reduce extra nighttime lighting in your own town and backyard . These steps may not only enable you to see the stars better , but could also save you money on and help reduce the world's energy crises .
Finally , there is Earth Hour , a movement established in in , Australia , when 2 . 2 million individuals and more than 2 , 000 businesses turned their lights for one hour to take a stand climate change . Just one year later , Earth Hour had become a global movement with more than 50 million people across 35 countries participating .
During the hour , global such as the Sydney Bridge , CN Tower in Toronto , the Empire State Building in New York , Golden Bridge in San Francisco , and Rome's all stand in darkness , as symbols of hope for a cause that grows more urgent by the hour .
This year will be no different .
Earth Hour 2018 will take place on Saturday , March at 8 . p . m . ( local time ) . For more details : http : / / www . earthhour . org /

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