What Is Light Pollution?
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The Basics
Light pollution is the human-made alteration of naturally occurring light levels.
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Causes
Light pollution is driven by unshielded lights of improper color burning unnecessarily and sending light skyward.
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Types
Light pollution falls into four broad categories. Glare, sky glow, light trespass, and clutter.
Have you ever seen the night sky?
Negative Effects of Light Pollution
Light pollution has measurable detrimental effects on every aspect of life including:
(Clicking the links above opens a PDF in a new window)
Managing Light Pollution
Managing light pollution doesn’t have to be expensive or complicated.
By following the Five Principles of Responsible Outdoor Lighting, and making informed decisions in lighting design, a dark sky and a safer, less wasteful nighttime environment can be achieved.