Category: Resources | Page 6 | DarkSky International

View from inside a house looking through a window at a neighboring property illuminated by extremely bright outdoor lighting at dusk. Tall, leafless trees cast long shadows across the foreground lawn, while intense white light from the neighboring home creates significant glare and illuminates the surrounding woods beneath a deep blue evening sky.

My neighbor’s lighting: What can I do?

Resources

Many of us have experienced this situation: a neighbor installs a new outdoor light fixture that shines onto your …

July 5, 2026

Streetlights on city street at night create glare making it hard to see.

Street lighting

Light Pollution

Streetlights can cause light trespass — light that falls where it’s not intended, wanted, or needed.

August 19, 2025

CIty at night with light pollution

Dark sky friendly outdoor lighting for policy makers

Resources

In an average year in the U.S. alone, outdoor lighting uses about 380 terawatt-hours of energy, mostly to illuminate …

August 30, 2023

Responsible outdoor lighting

Resources

Too often, outdoor electric lighting installations at night are over lit, are left on when not needed, and are …

August 11, 2023

Natural darkness and human well-being

Light Pollution

With the rise of artificial light at night, our natural rhythms are being disrupted—while more research is needed, these …

November 17, 2025

Light pollution reduces our night sky heritage

Effects of light pollution

The nighttime environment is a precious natural resource for all life on Earth, but the glow of uncontrolled outdoor …

October 17, 2023

A man at night, nearly hidden in the glare of a park light.

Outdoor lighting at night doesn’t do what you think it does to reduce crime and increase safety

Effects of light pollution

There is no clear scientific evidence that increased outdoor lighting deters crimes. It may make us feel safer, but …

October 17, 2023

Light pollution wastes energy and money and damages the climate

Effects of light pollution

Lighting levels that are higher than necessary and light that shines when and where it’s not needed is wasteful. …

October 17, 2023

Sea Turtle Conservation

Sea turtle conservation

Resources

Hatchling sea turtles often head for brightly illuminated roads and human habitats instead of the ocean.

July 23, 2023

Two schoolchildren wearing wide-brimmed hats hold a colorful handmade poster featuring sea turtles and the message "Cut the glow and let turtles go!" during a community event promoting the protection of sea turtles from light pollution. Several people and educational displays are visible in the background.

Materials for educators

Resources

A light pollution curriculum developed the by DarkSky Texas chapter, with videos and activity sheets for two levels: 1) …

July 5, 2026

A mountain lion at night, with the city lights of Los Angeles in the background.

Light pollution harms wildlife and ecosystems

Resources

For billions of years, all life has relied on Earth’s predictable rhythm of day and night. It’s encoded in …

June 25, 2026

Resources

Resources

DarkSky offers a growing library of educational resources and tools designed to help you better understand the causes and …

July 5, 2026