There are valid arguments on each side of the "light pollution" debate. Astronomers dislike stray light that makes it difficult to see the stars, while police and city planners - and residents - know that street lighting and security lighting deter criminals, who would rather practice their vile trade in the dark, and makes it safer for drivers. So the question is, is there a way to light the cities, but not the skies?
There is no escape. Light bounces, reflects, scatters. You can't point lights at the ground and not have reflections back into the sky. Which is not to say that engineers can't try to minimize the effects.
Many street lights and city lights point UP. This may be pretty, but does nothing to enhance security while magnifying the problems of light pollution. Street lights and security lights should be shaded to not point to the sky.
Really, though, it boils down to a decision about who gets inconvenienced; a few astronomers, or millions of citizens?
Go out of the city so you can see the stars the only way to not have light pollution is to turn them all off
In my opinion it can not stop completely but can be reduced by aiming it properly i.e it should not be emitted above the source's horizontal plane
Only use light when it is absolutely needed and use shielded street lights that re-direct light downwards instead of up into the sky.
It can be prevented by stopping pollution...
ocean pollution is when chemicals or waste spills into the sea.It can be prevented if you join groups like green pease or give money to those groups.
DONT DRIVE YOUR CAR!
Reduce the number of humans on the planet.
Air pollution Water pollution Light pollution
Manage waste and reduce chemical use.
Erosion can be prevented by maintaining plant growth in an area, and stopping is simple: don't put anything into the ground.
THEY HAVE PREVENTED BY, PLANTING TREES ALONG RIVER BANKS, CONSTRUCTING TALL CHIMNEYS, NOT BURNING PLASTIC OBJECTS
Light pollution is not a crime yet, but buildings should atempt to reduce it. Light pollution is still a crime against the environment.
it could reduce pollution and renew energy resources.
You could stop pollution and littering
Light pollution does not affect astronauts, it affects astronomers.