Light Pollution Map for Web

Quick overview of the app

Light Pollution Map is a free, map-based app that visualizes artificial nighttime lighting around the globe. It uses color overlays to indicate areas of intense illumination and darker skies, helping users see where light pollution is concentrated and where naturally dark skies remain.

Why this matters

Light pollution affects animals, ecosystems, and human health, and it erases views of the night sky. The app’s primary aim is to increase public understanding of these impacts and to inspire people and communities to make lighting choices that preserve darkness where possible.

Core capabilities

• Search for specific towns, addresses, or landmarks and jump straight to the area you care about.
• Pan and zoom across the globe to compare urban brightness with rural or protected areas.
• View color-coded overlays that represent relative nighttime brightness levels.
• Contribute field observations or local reports to help improve on-the-ground knowledge.
• Access educational content and practical tips for reducing unnecessary outdoor lighting.
• Support citizen science and research by providing up-to-date measurements of light distribution.

Data sources and known limits

The app combines several types of input — satellite-based night imagery, ground observations, and modeled calculations — to estimate illumination. This multi-source approach improves coverage, but some remote or sparsely monitored locations will still have limited or less precise data. The maps are a useful guide rather than a definitive measurement in every spot.

How people can get involved

• Share local lighting problems or dark-sky successes through the app’s reporting tools.
• Adopt shielded, downward-directed fixtures and motion controls to cut unnecessary light.
• Use the app to plan stargazing trips or community outreach events where dark skies persist.
• Spread awareness by sharing maps and findings with neighbors, schools, and local planners.
• Review the educational resources in the app and apply suggested changes at home or in public spaces.

Who should try it

This tool is valuable for educators, amateur astronomers, conservationists, city planners, and curious individuals who want a visual, interactive way to explore light pollution patterns and their consequences.

Alternatives and next steps

If you want more advanced visualization or animation options, consider tools such as Google Earth Studio (free) or other GIS platforms that can layer light data with additional geographic information. Use Light Pollution Map mainly as an educational resource and a starting point for local action and scientific curiosity.