I just was on a panel for DarkSky International's Under One Sky conference.
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I just was on a panel for DarkSky International's Under One Sky conference. The panel was about novel and emerging sources of light pollution, I was there to yell a lot about Reflect Orbital.
One of the other panelists was Jolyon Troscianko, who studies animal vision at night (how totally cool!) and he was talking about headlights as a source of very bright, pulsed light pollution. Moths lose their night vision for at least an hour after a headlight sweeps past, possibly all night.
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I just was on a panel for DarkSky International's Under One Sky conference. The panel was about novel and emerging sources of light pollution, I was there to yell a lot about Reflect Orbital.
One of the other panelists was Jolyon Troscianko, who studies animal vision at night (how totally cool!) and he was talking about headlights as a source of very bright, pulsed light pollution. Moths lose their night vision for at least an hour after a headlight sweeps past, possibly all night.
The other panelist was @skyglowberlin, and I learned a lot from his talk! He's studied light pollution in cities, and found that about half of light pollution isn't from streetlights, it's from headlights, signs, and shop/home windows. Horizontal light is the big problem!
https://gfzpublic.gfz.de/rest/items/item_5035605_3/component/file_5035610/content
He also pointed out that light pollution is growing faster than population, everywhere, and has been since WWII
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The other panelist was @skyglowberlin, and I learned a lot from his talk! He's studied light pollution in cities, and found that about half of light pollution isn't from streetlights, it's from headlights, signs, and shop/home windows. Horizontal light is the big problem!
https://gfzpublic.gfz.de/rest/items/item_5035605_3/component/file_5035610/content
He also pointed out that light pollution is growing faster than population, everywhere, and has been since WWII
He talked about how France is the only country in Europe that has gotten less light polluted in recent years. Most cities and towns turn off their streetlights at night. (Part of the reason for this is because of energy prices increasing due to Russia invading Ukraine)
Notes that traffic accidents and crime rates have NOT gone up due to lights being turned off! (That is the usual argument for keeping cities brightly lit).
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He talked about how France is the only country in Europe that has gotten less light polluted in recent years. Most cities and towns turn off their streetlights at night. (Part of the reason for this is because of energy prices increasing due to Russia invading Ukraine)
Notes that traffic accidents and crime rates have NOT gone up due to lights being turned off! (That is the usual argument for keeping cities brightly lit).
Ok time to get off Zoom and mastodon and go embrace the cold, I guess.
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He talked about how France is the only country in Europe that has gotten less light polluted in recent years. Most cities and towns turn off their streetlights at night. (Part of the reason for this is because of energy prices increasing due to Russia invading Ukraine)
Notes that traffic accidents and crime rates have NOT gone up due to lights being turned off! (That is the usual argument for keeping cities brightly lit).
@sundogplanets I can confirm this from France. It was originally intended because the boycott of Russia increased prices but meanwhile it's Electricity Of France EDF becoming greedy.
And is now being continued because so many local authorities are becoming increasingly impoverished.We take pocket torches with us. For years, we had a protest movement demanding that also advertising signs finally be darkened, a big problem. This has only been regulated since this year! https://inspirefrance.fr/eclairage-publicitaire-2025-france-commerces-environnement/
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