A groundbreaking new light pollution map has just been released, revealing the alarming extent of artificial illumination across the globe as of 2025. This annual update highlights not only the increasing prevalence of light pollution but also the shifting colors and intensities of urban lighting, driven largely by the rise of LED technology. The map serves as a stark reminder of humanity’s impact on the night sky, with implications for both ecological health and human well-being.

As cities grow and populations swell, the correlation between light pollution and population density becomes increasingly evident. However, the map also uncovers striking anomalies, such as the vast dark expanse of North Korea, where 25 million people live in virtual darkness, starkly contrasting with the bright lights of neighboring South Korea. Meanwhile, Australia’s outback remains a largely unlit territory, reflecting the challenges of sustaining large populations in remote areas.

The map’s vivid colors illustrate when regions first adopted artificial lighting, offering a visual history of industrialization and urban development. Areas like metropolitan Los Angeles and the densely populated lowlands of Europe shine brightly, while vast stretches of land in Egypt and Iberia reveal a more concentrated human presence along coastlines and riverbanks.

This new light pollution map is not just a tool for scientists; it provides critical insights for urban planners, environmentalists, and even strategic game developers who seek to understand population hubs and their economic implications. As the world continues to light up, the urgency to address the consequences of light pollution grows ever more pressing. The night sky is changing, and we must act swiftly to understand and mitigate its effects before it’s too late.