…Nowadays luminous pollution is getting a more and more serious problem, mainly in cities and big cites…
…due to this kind of pollution we are not able to see the stars at night…
«Light pollution, like other forms of pollution, resulting from the use unconscious resources and distracted»#
Luminous pollution is the type of pollution caused by excess light (artificial light), reduced the visibility of stars and stars. This type of pollution causes health problems and ecosystems:
CAUSES
- Over-illumination
- Advertising (publicity bills)
- Incorrect choice of light bulbs
- Not using timers to extinguish lighting when not needed
CONSEQUENCES
Light pollution is causing some serious problems affecting the entire planet:
- Global warming: to create light takes electricity → electricity is generally generated by the burning of fossil fuels → this increases carbon dioxide levels in the atmosphere → this contributes to global warming and climate change.
- Human health threatened – stress, headaches, fatigue, hypertension
- Disruption of ecosystems :
- Some nocturnal birds use the moon and stars for navigation during their migrations; and they can become disoriented when flying through brightly lit areas.
- Female sea turtles shy away from areas with bright lights, which interrupts their nesting patterns.
- Other reptiles and mammals are believed to suffer from bright lights in relation to feeding habits.
SOLUTIONS
What you can do:
- Light only where needed 
- use sensors where possible
- Don’t waste light
- Shine light downwards, using shields and reflectors
- Light with energy efficient sources such as compact fluorescents.
Information and images from site:
www.conexaoitajuba.com.br/.../090609-unifei.jpg
www.silvestre.eng.br/.../efeitos/udi03.jpg
http://www.oal.ul.pt/oobservatorio/vol3/n6/vol3n6_6.html
http://geoleiria.blogspot.com/2009/07/observar-o-ceu-sem-poluicao-luminosa.html
#(http://www.oal.ul.pt/oobservatorio/vol3/n6/vol3n6_6.html)
http://www.apolo11.com/imagens/etc/poluicao_luminosa_imagem_de_satelite.jpg
Luis Gomes, Ourplanet2009
Este comentário foi removido pelo autor.
ResponderEliminarOnce I heard about this type of pollution but I was not sure what it was but now I do. I think people do not know that this type of pollution exists or if they do, they probably do not care, because they think this one is not as bad as water pollution and they do not depend on light but on the other hand this pollution affects other points in our daily routines.
ResponderEliminarBy the way, nice post.
Bernardo P.