1 Turn on the night
Artificial night light obscures the celestial magic of natural wonders, such as the Aurora Borealis, drives biodiversity loss and negatively affects our circadian rhythms and physical and mental health. We endorse Dark Sky International’s recommendation to reduce average illumination levels by switching to dimmers, motion sensors and timers; using LED lighting and warm white bulbs for reduced illuminance; and directing the angle of essential light downwards. The worst pollution comes from commercial buildings and offices, where whole floors are left lit up at night; these establishments should be required to turn off unnecessary indoor lighting.
