LEDs could have cut light pollution — instead we wasted the opportunity

LED technology had the potential to drastically reduce light pollution and preserve dark night skies, but that opportunity is being squandered. Instead of using LEDs' energy efficiency to cut overall light output, cities and industries are simply illuminating more areas than before. Scientists warn that without a change in approach, artificial light at night will keep increasing despite the more efficient technology.

Should cities limit LED lighting at night to protect dark skies?

Hacker News · 6d ago · Source ↗

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LEDs could have cut light pollution — instead we wasted the opportunity

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