Light pollution is skyrocketing
Recently scientists have warned that due to light pollution, it will not be possible for us to see stars in the sky in the next two decades.
- Scientists say that the night sky is becoming more illuminated at a rate of about 10% per year due to the increase of light pollution.
- Light pollution is increasing rapidly. This has accelerated especially since 2016, when astronomers reported that almost a third of the world’s population could not see the Milky Way.
- Such artificial light (usually outside the houses) which is excessive, misdirected, or causing disturbance is called Light or Photo pollution.
Components of Light Pollution:
- Glare: Excessive brightness that causes discomfort in vision.
- Skyglow: The glow of the night sky over populated areas.
- Light trespass: The use of light where it is not needed or where it causes inconvenience to others.
- Lighting Clutter: When there are too many bright and confusing lights at one place, it is called Clutter.
Impact of Light Pollution-
- Specifically, it has adverse health effects on humans and their natural physiological cycles, ie circadian rhythms.
- Circadian rhythms are physical, mental, and behavioral changes that follow a 24-hour cycle.
- Due to this astronomical research gets hampered.
- It hinders the migration and hunting of nocturnal wildlife, especially birds
- This causes disorientation in terrestrial animals such as Olive Ridley sea turtles.
Measures to prevent light pollution:
- The brightness of the light can be reduced;
- blue-white light should be used sparingly;
- It must be ensured that the light has a high red and orange color component;
- Motion sensor should be used so that light can be turned on only when needed (there is some movement) etc.
Source – Space.com
