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How do increased light levels, night sky brightness and cooler light colors affect wildlife? Try out yourself by using this simulation. How do owls or hedgehogs perceive this envir…

You have colortemperature, and it has several layers available: GR (green-red) and BG (blue-green) - They are the ratios of those bands. CCT is Correlated Color Temperature. Median…

The term noctalgia shall express "sky grief" for the accelerating loss of the home environment of our shared skies - representing loss of science, heritage, millennia-old sky tradi…

See how the effects of light pollution on your sky compare to the Murry River International Dark Sky Reserve. This simulation demonstrates from a ground perspective the real differ…

In the meantime there are >300 communities which switch off lights at late night hours. 164 in Wallonia/Belgium, 50 in Luxembourg, >100 in Germany. How about your countries?

I have created a map to showcase which cities/communities in Germany (and other countries) do switch off lights at night - mostly for saving energy, some for protecting #biodiversi…