What is it?
What is Light Pollution?
Brightening of the night sky caused by street lights and other man-made sources, which has a disruptive effect on natural cycles and inhibits the observation of stars and planets.
Street lights can cause a condition called?
When did humans find out about light pollution?
Around 1850
Are LED lights useful for the light pollution issue?
Yes
Worst Light Pollution Country
Singapore
Light pollution can cause birds to --------
migrate at the wrong time of season
When did efforts begin to address this issue?
Around 1950
how can we cure light pollution?
Using less lights at night
Contributes to increased levels of ------
Fill in the Blank
C02
Light pollution increases risk of cancer. True or false?
True
What happened in the 1980's?
A global light pollution movement emerged
A simple solution to light pollution?
Turn your lights off.
Why does Singapore have the most light pollution in the world?
This is because they have thousands and thousands of light appliances working at night.
Luckily, light pollution does not affect underwater ecosystems. True or False?
False
When was the international dark sky association founded?
1988
Colored lights have bad impact on light pollution. True or False?
False
3 sources of light pollution
Security lights that light up buildings and surroundings, Floodlights used to illuminate game pitches, places of entertainment and buildings, Street lighting, Advertising and display lighting.
Any 3 answers work
What can light pollution cause for humans?
Studies have shown that light pollution can cause obesity, depression, sleeping disorders, Cancer, and others.
In the chart that was displayed, what was the effect of light pollution to climate change?
As light pollution increased, climate changes increased as well.
We can also use glare-free bulbs, installing low hanging bulbs, having the lights face downwards, and covering the bulbs to reduce bright skies at night, and LED lights.