Light pollution (excessive light during night time) is a form of pollution that distresses many people, especially in modern cities. What are the causes of light pollution, and what solutions can you suggest for governments and businesses to take?

As more of us live in cities, the question of
light
pollution is becoming increasingly topical and important to address. There seem to be three main causes, and
also
two key solutions which we could take to lessen the problem. The main cause is almost certainly the use of lighting for advertising in public spaces. For example, if we look at cities
such
as Tokyo or Moscow, almost all available surfaces are fitted with some form of
light
, often for announcements or commercial use.
This
huge expansion in illuminated advertising is partly a result of competitive pressures, and
also
due to
the power of
such
advertising, with flashing
lights
, video and pictures. A secondary cause is the large number
or
Correct your spelling
of
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street lamps and security
lights
used in cities, which are intended to reduce accidents and crime by removing shadow areas at night.
Finally
, high levels of night-time traffic
also
produce
light
pollution, as drivers use headlamps which shine into windows and gardens after dark. Turning to possible remedies, it might be tempting for governments to ban or regulate electric advertising billboards, but in many cases (
for example
in New York or London) these signs are now a local symbol. It would
also
be difficult to reduce security and traffic
lights
,
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because these are needed to keep
residents
and travellers safe. I would rather see a government-backed programme of
light
protection for private homes, involving better insulation against outside
light
after dark.
This
would allow
residents
to rest in their homes without being disturbed by the
lights
in the streets outside.
Additionally
, a voluntary ‘dark day’ once per week, supported by business advertisers, in which all commercial lighting is reduced, would allow
residents
to experience a more natural level of darkness without jeopardizing their safety. In summary, advertising and public lighting are the main factors behind
this
problem. Better
light
insulation, and occasional voluntary reductions in commercial lighting, would greatly help the
residents
to live more in peace with a brightly illuminated environment
Submitted by shuh035 on

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