NASA and the Leibniz Institute found a 16% increase in global night-time light levels from 2012 to 2023
GS3Economy · S&T · Environment · Security· IT, AI, semiconductors & computing· Prelims·
Why in news
NASA and the Leibniz Institute found a 16% increase in global night-time light levels from 2012 to 2023, primarily driven by urbanization and electrification in sub-Saharan Africa and Southeast Asia.
Background
Satellite data shows a 16% increase in global night-time light levels between 2012 and 2023. The Leibniz Institute of Freshwater Ecology and Inland Fisheries collaborated with NASA on this finding.
Facts for Prelims
- FactGlobal night-time light levels increased by 16% between 2012 and 2023.
- PlaceSub-Saharan Africa and Southeast Asia recorded the most significant increases in night-time brightness.
- S&TArtificial light proliferation is linked to urbanization, electrification, and technological advancements in lighting.
- EnvironmentIncreased night-time brightness disrupts nocturnal ecosystems, animal migrations, and human circadian rhythms.
For Mains
Q. Discuss the ecological and physiological impacts of increasing artificial light at night and suggest measures to balance urban development with the preservation of natural darkness.
Dimensions to cover in your answer
- Ecological disruption: Interference with nocturnal species' foraging and migratory patterns
- Human health risks: Disruption of circadian rhythms and sleep-wake cycles
- Policy trade-off: Balancing rapid urbanization and electrification with light pollution mitigation
Keywords: Light pollution · Circadian rhythms · Urbanization · Nocturnal ecosystems · Electrification
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