... ... ... ... LIGHT POLLUTION Do we have the opportunity to participate in a decision that could benefit the light pollution? Do we know the close relationship between this term and the energy efficiency? How one city is pretty bright? "Until we see the stars?
CELFOSC Association against contamination-lumen http://www.celfosc.org
International Dark-Sky Association http://www.darksky.org
Instituto de Astrofisica de Canarias http://www.iac.es/proyect/otpc
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