What Causes ‘Light Pollution’ and How Does It Affect Nature?

Imagine your room is dark at night, but then you turn on a lot of bright lights, the whole room becomes brighter and harder to see the stars. That’s like what happens with light pollution. Big cities have so many lights that they make the night sky too bright for animals and people to enjoy. Some animals get confused by all the lights, which can change how they live.

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Examples

  1. A streetlight shines so bright that you can’t see any stars.
  2. Fireflies are confused by lights from a nearby house.
  3. The moon looks dimmer because of all the city lights.

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