"Our desire for night-time lighting in a 24-hour society seemingly justifies any amount of wasted light"I stumbled across an interesting article regarding light pollution. (http://news.bbc.co.uk/2/hi/science/nature/4794249.stm)
This article enlightens most of the causes and consequences of wasting light.
Altough light pollution is ignored by many many people, it is a problem as grave as water pollution or air pollution. Not just to our health, but to our pockets as well. Every year millions of dollars are wasted in light pollution, which has no purpose whatsoever. Even the most modern streetlights shine directly into the sky, and serve no purpose.
Salesmen don't help either, since most stores sell bulbs from 150 to 500 Watts. A 5-watt bulb used in lighthouses can be visible for more than 21 miles.
It is everyone's job to prevent this, even if just by turning down the lights in our houses, or buying new bulbs with less wattage.
Leonardo Campos
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