Skip to main content
NSW Department of Planning, Industry and Environment
  • Share:

What is light pollution?

Light pollution is the brightening of the night sky from artificial light.


Artificial light can be lights from our homes, street lights, lights from schools, sporting parks etc.


Too much light pollution can:

  • affect the environment
  • disrupt the normal breeding and migration patterns of nocturnal animals
  • have negative health impacts on human beings
  • restrict observatories ability to see and research the night sky.

How can I help protect the night sky?

  • read the Dark Sky Planning Guideline for practical advice on how to minimise light pollution in your home
  • talk to your teachers about introducing the dark sky education unit in your school
  • watch our video series of leading experts talk about the impacts of light pollution on the environment and human health.
Dark sky planning flip tile 430x278

Dark Sky planning

We created the Dark Sky Planning Guideline to help protect one of the world's most important observatories from light pollution.

Read more about the guideline
Dark sky education flip tile 430x278

Dark Sky education

We created a fun education unit so teachers, students and kids can all help protect the night sky.

Learn more about the unit
Dark sky video series flip tile 430x278

Dark Sky video series

Hear from leading experts on how light pollution is affecting the environment and our health.

Watch the videos