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Light Pollution Map

lightpollutionmap.info

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Re: Light Pollution Map

#91

It's probably similar to a map showing where most rich people are living.

I was thinking that too, and was fully expecting the top comment to be a joke about heat maps that are actually population maps, but it turns out there are some interesting insights I wouldn't have expected. Namely that there are substantial differences when comparing areas with light pollution legislation with similar unregulated areas; also interesting to see how much light pollution there is even at sea!

Re: Light Pollution Map

#94

It's not like nothing can be done about light pollution. For example Germany has a law about light pollution, and it shows on this map. It less polluted than its neighbours, although it has higher population density and urbanization level.

The International Dark Sky Association has some template laws that can be used as a starting point:

> The MLO offers several innovations to outdoor lighting regulation, including the use of lighting zones to classify land use with appropriate lighting levels for each. The MLO also makes use of the “BUG” (Backlight, Uplight and Glare) classification of outdoor lighting fixtures to ensure that only well-shielded fixtures are used.

* https://www.darksky.org/our-work/lighting/public-policy/mode...

Re: Light Pollution Map

#95
This has been a very useful website. I observed that the more "developed" a place is, more the population and inevitably a lot of light pollution. I wonder how to reduce light pollution while not bargaining with the safety at night.

Re: Light Pollution Map

#98
post #84

Earlier quoted context omitted.

Dark Sky communities are only one kind of designations, there are also Dark Sky "Parks" [0], "Reserves" [1], and "Sanctuaries" [2]. Those are much more scattered through the world. [0] https://www.darksky.org/our-work/conservation/idsp/parks/ [1] https://www.darksky.org/our-work/conservation/idsp/reserves/ [2] https://www.darksky.org/our-work/conservation/idsp/sanctuari...

It still looks very US-biased. I can think of several dozen places and parks in northern Scandinavia, western China, Mongolia, Canada that are almost devoid of light pollution that aren't even on this list. Also almost the entire country of Iceland and all of its parks are excellent dark sky and not even mentioned here. And that's just places I have personally been. I'm sure there are huge parts of Africa, Australia…

Oh yeah I do agree that it's still very US-centered and a tad hypocritical.

I'd say it's mostly because there is an application process. Unlike for example travel guides where people go around the world to discover new places, IDA is waiting for those places to apply. If you add the language barrier, the quite long list of requirements and political actions to make to be able to apply, that only reduces the list of candidates.

I suppose there are also less-known local initiatives throughout the world. Here in France, we have the ANPCEN [0], fighting against light pollution and delivering labels to cities that take actions against light pollution (like shutting off the streetlights from 11PM to 5AM).

[0] https://www.anpcen.fr/?id_rub=19&rub=participez-%E0-villes-e... (in French, but there is a Google Translate button in the footer)

Re: Light Pollution Map

#99
It was interesting to see that the timeline accurately reflects the changeover from sodium vapor to LED street lighting in my community. Still too much light, but better.

Re: Light Pollution Map

#100
I really like that site. Have used it multiple times to find dark spots for photographing the milky way. However, I don't understand why the default overlay is from 2015, when there is newer data available. First thing I usually do is switching to the most recent overlay.
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