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Interesting Article on the Effects and Use of Light

Key points are:

  • Two-thirds of the world’s population, and 99 percent of people living in the continental U.S. and Western Europe, no longer experience what we might call true night — one free from the glow of artificial lights.
  • The three main ways people are finding out it’s having an impact is that it’s disrupting sleep and contributing to sleep disorders; it’s interfering with our circadian rhythms; and it’s impeding producing the hormone melatonin.
  • Of all the pollutions — air, water, etc. — light pollution is probably the one that we hear about least.
  • The advance of LED technology offers an opportunity to advance the conversation, to get people thinking about how are we lighting.



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