According to the International Dark-Sky Association, human-produced light pollution not only mars our view of the stars; poor lighting threatens astronomy, disrupts ecosystems, affects human circadian rhythms and wastes energy
Economists research value of dark sky at four national parks
According to the International Dark-Sky Association, human-produced light pollution not only mars our view of the stars; poor lighting threatens astronomy, disrupts ecosystems, affects human circadian rhythms and wastes energy