There are two basic approaches to solving light pollution – planning and education. Planning means more consideration about how areas are zoned and where lights are placed. It also means changing the types of lights used within the home, signs and streetlamps to more efficient bulbs, and with a light output that is not so disruptive. Education is also key. The more people understand the importance of turning off lights to conserve energy and reduce light pollution the faster change will be seen.
It is difficult to change habits with people and expensive to redesign and replace what already exists. Slowly people and governments are recognizing the long term impact of exposure to light pollution and are seeing that preventative costs provide long-term savings over the long run. Light pollution is getting more attention these days and as education and awareness improves, so will efforts to reduce light pollution.
Resources: http://www.conserve-energy-future.com/types-causes-and-effects-of-light-pollution.php
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