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Wednesday, December 14, 2011

Light Pollution

This video illustrates light pollution really well and inspired me to write a post about it.


Since we moved to the country-side I can't say that I don't miss the street lights in Helsinki during the dark months, when I have to take the dog out, but then again I don't find them necessary and mostly I miss them because I am scared of going out in the complete darkness, even if I know it's silly.

The thing with light pollution is that it is not only a waste of energy but it affects our health (causes stress and disrupts our natural day-rhythm). Light pollution also affects animals and organisms.

Here are some examples on the effects on wildlife:

  • Birds can become lost and confused if they can't see the stars over a bright city.

  • When sea turtles hatch, the babies are supposed to follow the moon to the water. Bright beach lights, however, can lead them in the wrong direction.

  • Many animals like frogs, bats and fish can experience damaging behavioral and physiological changes, such as disrupted feeding and breeding habits, as a result of light pollution.
It seems light pollution also affects smaller animals like insects and even the plants.

Read more on light pollution on for example wikipedia.
Here is also a nice (but long) article in Spanish.

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