Light Pollution

Background

100

Define light pollution and what it is.

Too much artificial light = Light pollution is the excessive, misdirected, or inappropriate use of artificial outdoor light, which disrupts the natural balance of the night sky.

200

How many people can't see the Milky Way? (What percentage of the population?)

80% of the people can't see the Milky Way today.

300

What is one goal to help with light pollution?

• Valuing it as part of nature
• Using it with purpose and care
• Understanding impacts on health & wildlife
• Realizing smarter light = better safety

Cause and Effect

100

Which animal has been mentioned that has been affected by light pollution?

Sea Turtles (baby turtles) :(

200

Name two ways that light pollution affects humans

• Sleep disorders
• Increased risk of hormonal cancers (e.g. breast, prostate)
• Disrupted metabolic processes
• Mental health and mood disorders
•  Negative 

300

How does light pollution influence breeding inconsistencies?

Animals think that artificial light is the moonlight, causing them to initiate their breeding cycle sooner

Solutions

100

What is one short-term solution for light pollution?

• Install motion-sensor lighting
• Shielding light fixtures
• Switch to warm-colored, low-watt bulbs
• Turn off decorative outdoor lights late at night
• Use reflectors

200

What is one long-term solution for light pollution?

• Upgrade city streetlights to save energy
• Dark Sky Reserves

300

Why would Dark Sky Reserves be important?

To protect areas with exceptionally dark night skies, protecting them for their scientific, natural, educational, and cultural value.