Impact on Humans
Artificial light at night (ALAN) disrupts this biological process, often termed the "internal clock," which regulates sleep, metabolism, and hormone production
What is the Circadian rhythm?
Over-illumination light pollution results in the overconsumption of this energy carrier, which is the organized flow of charged particles.
what is electricity?
what are spiders?
what is the Milky Way?
Extreme night sky pollution is linked to a 34% increase in the likelihood of developing which cancer that begins in mammary tissues?
what is breast cancer?
Blinding, disability, and discomfort are the three categories of this type of light pollution, which shares its name with an intense, angry stare.
what is glare?
what are turtles?
This special administrative region of China and port city, which is cited to be the most light polluted city in the world, factors at a 9 on the scale.
what is melatonin?
One type of light pollution derives from these objects, which orbit planetary bodies and send information back to Earth.
what are satellites?
Light pollution disrupts this process that certain bird species complete seasonally for access to resources.
what is migration?
what is zodiac(al) light?
As of 2024, the amount of money, in USD, lost globally per year due to the impairment of ecosystems as a result of light pollution. (leeway given)
what is $3.36 trillion?
This is the only form of light pollution explicitly prohibited by the city of New Orleans, sharing its name with a verb that means to tread on someone's property without permission.
what is trespass?
Night-blooming flowers are threatened by light pollution because of the interference to these nocturnal, winged, insect pollinators
what are moths?
This southeastern Asian country factors at a 9 on the scale - the most light polluted country in the world.
The percent of Americans living under light-polluted skies 10% brighter than natural darkness
what is 99%?
The official term given to the illumination of the night sky as a result of light pollution
what is skyglow?
Light pollution can prevent zooplankton from eating algae in lakes, causing this phenomenon that suffocates fish and lowers water quality.
what is (an) algal bloom?
Bortle first published his scale in this magazine, which covers all aspects of amateur and professional astronomy and features Diana Hannikainen as editor-in-chief