WHAT IS LIGHT POLLUTION?
THE BRIGHTEST CITIES ON EARTH
The global urban average is around 18.9 radiance units, which is a little brighter than West Yorkshire
Cities by radiance
Pollution comes in many forms, such as plastic waste, greenhouse gases and sewage. However, there’s one type of pollution that often gets overlooked, and it can have serious implications for our environment and even our health.
Light pollution, or photopollution, is the presence of excess artificial light and is a result of urbanisation and industrialisation. Street lighting, domestic and commercial lights, vehicles and security lights all contribute to the creation of a dome-like shield of light pollution called skyglow. Along with skyglow, light pollution consists of glare, light trespass and
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