Huge clouds illuminated by Manhattan at night during stormy weather., New York City shows up as a big white blotch.
With a surface brightness of about 17.5 magnitudes per square arc second, stars are very hard to see around the five boroughs. A nice dark sky — say in the middle of the ocean — measures at 22, making it easier to see stars. Places in upstate New York get close to this dark state.International Dark Sky Week aims to increase awareness of the seriousness of light pollution. It begins April 22nd, and runs through the end of the month.
Excessive and unnecessary artificial light does more than block the view of the universe; it impacts human health and wildlife. It also influences climate change. Light pollution continues to worsen at“For all of human history, we've been able to walk out at night and look up at the stars and dream or imagine, and have a sense of something greater than ourselves,” said Dr.
Birds, mostly migrating at night, are attracted to the bright lights. They get confused, drawn off course and tired out. When too much light is present at night, birds can think it’s time to find food and a good place to rest for the next leg of their journeys because they think it’s day time. Instead, they end up flying right into building glass, and dying.from building collisions in the five boroughs, according to estimates from the New York City Audubon Society.
“It’s true; I’m trying to get everyone to turn off their lights,” said Andrew Maas, spokesperson for the New York City Audubon Society. “The collective light from our city is drawing in all these birds, and the more light we can have turned off, the better it is for our birds.”reported last year that artificial light can suppress firefly mating. Females and males struggle to see each other’s flashing courtship signals in artificial lights, greatly inhibiting the creation of more fireflies.
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