International Dark Sky Association


The mission of the International Dark-Sky Association (IDA) is to preserve and protect the nighttime environment and our heritage of dark skies through quality outdoor lighting. The IDA was incorporated in 1988 as a tax-exempt non-profit organization operating exclusively for educational and scientific purposes.



  1. Stop the adverse effects of light pollution on dark skies, including
    • Energy waste and the air and water pollution caused by energy waste
    • Harm to human health
    • Harm to nocturnal wildlife and ecosystems
    • Reduced safety and security
    • Reduced visibility at night
    • Poor nighttime ambience
  2. Raise awareness about light pollution, its adverse effects, and its solutions
  3. Educate everyone, everywhere, about the values of quality outdoor lighting
  4. Help stop other threats to our view of the universe, such as radio frequency interference (RFI) and space debris


Posted July 2007