View Full Version : LEDs: Light Pollution Solution or Night Sky Nemesis?

2014-Jan-13, 02:40 PM
You may have noticed a change underway in your city lighting. High pressure sodium lights, with their familiar orange glow, are quickly being replaced by new, energy efficient *blue-white LED (light emitting diode) lighting. Is this the beginning of a new assault on the night or an opportunity to use light more wisely? (...)Read the […]

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