Light Pollution: the Detrimental Effects of Sky Glow
By Nina Capaldi '27
Light pollution is the human-made change to outdoor light levels. Factories, streetlights, billboards, houses, parking lots, and satellites all contribute to light pollution. Light pollution is a serious concern as the brightened sky is detrimental to all life. Two-thirds of America and over a half of Europeans can no longer view the Milky Way with their naked eyes, and 63% of the world population and 99% of the E.U. and U.S. live under a night sky that is brighter than the threshold for light-pollution. According to the International Astronomical Union, the threshold for light pollution is if the artificial brightness of the sky is greater than 10% of the brightness of the natural sky. Light pollution has gone unchecked for years, and has increased by 10% every year...


