What is light pollution?

Reflecting on Under One Sky 2024: A global gathering to protect the night

Astronomy

Under One Sky 2024 was our largest and most impactful global conference to date!

November 21, 2024

Darkness for Well-Being

About

If you’ve ever stood under the stars and taken a deep breath, you might have noticed the therapeutic effects …

August 23, 2024

Zen and the Stars with Mark Westmoquette

About

Astronomer, Zen Buddhist, author, and mindfulness teacher Mark Westmoquette shares how connecting with the night aids in well-being. Tell …

July 8, 2024

From the beach to the seafloor, light pollution interferes with marine life

Effects of light pollution

For World Oceans Day (June 8, 2024), we’d like to discuss the growing threat of light pollution to marine …

June 8, 2024

Causes of light pollution

Resources

Light pollution is a problem, but there’s no single country, group, or industry to blame. Instead, it’s a result …

July 31, 2023

Effects of light pollution

Resources

Light pollution negatively affects…

October 13, 2023

What is light pollution?

Resources

Light pollution is the human-made alteration of outdoor light levels from those occurring naturally. When we over-light, fail to …

October 4, 2024

Solutions to light pollution

Resources

Light pollution is harming our environment, wildlife habitats, and our quality of life. All around us, this unintended pollutant …

July 24, 2023

Light pollution affects human health

Light Pollution

Research suggests that artificial light at night can negatively affect human health, increasing risks for obesity, depression, sleep disorders, …

October 5, 2023

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

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