研究发现地球夜间亮度自2014年以来增加16%

Earth’s nights are no longer as dark as they once were. A new peer-reviewed study published in Nature reports that the planet became approximately 16% brighter at night between 2014 and 2022, reflecting sweeping changes in infrastructure, electrification, economic growth, and public policy. But the shift is not a simple story of relentless illumination. Researchers describe Earth’s nightscape as “highly volatile,” with some regions lighting up dramatically while others intentionally dim — and still others plunging into darkness due to conflict or infrastructure collapse. The findings paint a detailed portrait of a world in transition, visible not through daylight images of cities and highways, but through millions of satellite snapshots taken after sunset. …