Light pollution is wasted artificial light that causes glare, light trespass, and sky glow. Glare is too much background light, light trespass is light spilling into unwanted areas, and sky glow is light scattering in the air creating a glowing sky. Solutions are needed to address these issues from light pollution.

1. LIGHT POLLUTION
Shielding the
Problem

2. What is Light Pollution?
• Wasted artificial light that
performs no function and/or
goes where it’s not supposed
to go.

3. Glare
Too much background light.

4. Light Trespass
Light that spills into an area where it
is unwanted.

5. Sky Glow
Lots of light scattering off particles in the air,
giving the appearance of a glowing sky.

6. What can we do about
it?