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Environment Article - Loss of the night: Light pollution rising rapidly on a global scale

JNA

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http://www.cnn.com/2017/11/23/health/light-pollution-increase-study/index.html

HIGHLIGHTS -
"When we switch from a sodium lamp to a white LED, what we observe is a decrease in the total amount of light that the satellite can see.
But what we saw instead for the US was basically a constant amount of light; new lights were added in other places,"

Last year, the American Medical Association issued an official policy statement about LED street lighting, recommending a radiance and color temperature level less harmful to health.

Another landmark study published last year found that 83% of the world's population and more than 99% of the US and European populations were affected by light pollution and could not see the stars at night.
Studies weblinked in article:
Artificially lit surface of Earth at night increasing in radiance and extent
http://advances.sciencemag.org/content/3/11/e1701528

The new world atlas of artificial night sky brightness
http://advances.sciencemag.org/content/2/6/e1600377.full


AMA Policy weblinked in article:
https://www.ama-assn.org/ama-adopts-guidance-reduce-harm-high-intensity-street-lights
 
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