NASA Night-Lights Map Reveals a World of Brightening Hubs and Dimmed Regions
NASA's nine-year Black Marble analysis shows Earth's night lights are not simply expanding: radiance rose about 34% while dimming offset it by roughly 18%, with regional shifts like brighter West Coast US, dimmer East Coast due to efficiency and economic changes, and increased brightness in China and northern India, plus European dimming from conservation efforts and a 2022 energy crisis. The findings, published in Nature, emphasize a dynamic and uneven global light footprint tied to urban evolution and policy impacts.
