Gap Fill - Light Pollution - Level 4


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   ago      artificial      bacteria      because      cities      darkness      entire      environment      health      lights      many      more      most      natural      plants      pollutant      pollution      threat      today      view  
Bright light from around the world is reducing the of night. Years , when night-time fell, the dark arrived. Not . A new study says light at night grew in countries by 2.2 per cent a year between 2012 and 2016. This is causing us problems. The International Dark-Sky Association says it, "is not only [reducing] our of the universe, it is [badly] affecting our , our safety, energy consumption and ".

Artificial light is a to our environment. A scientist called it a " that threatens nocturnal animals and affects and microorganisms". It is affecting , mammals, and humans. It is reshaping " social ecological systems". Environmentalists thought LED would help. However, cities are using of these they are cheaper. This is adding to the light . Night-time light decreased in 16 countries.

Try the Light Pollution - Level 5 gap fill.

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