Energy and money waste.

 

Changes into the indoor night environment:

  • Light trespass into bedrooms.
  • Reflection in displays (TV or PC screens).

Changes into the outdoor night environment:

  • Sky glow.
  • Impact on certains chemical reactions in the night’s air.

Impact on the astronomical observations.

Interference with the light signals:

  • Inadequate visual guidance.
  • Confusion.

Destruction of ecosystems:

Effects on the human health.