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Commission for Dark Skies
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Early adopters of LED street lighting are struggling with glare and light pollution
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From ALAN2016: Chris Kyba @skyglowberlin receives the @IDADarkSky Galileo award 2016
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From ALAN 2016: "In Quebec they did trials where lamp power was reduced by a factor of 4, and none of the residents noticed. -Aube"
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" In mid-August, I went in my backyard about 3 a.m. to watch the Perseid meteor shower. While I did see several dozen meteors on the clear and pleasant night, I was surprised at how much glare was in the sky at that time."
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This article, about differing results when experiments on mice are repeated, mentions circadian rhythms as a factor.

The subject of the article:

>>
It’s no secret that therapies that look promising in mice rarely work in people. But too often, experimental treatments that succeed in one mouse population do not even work in other mice, suggesting that many rodent studies may be flawed from the start.
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and a consequence of not taking circadian rhythms into account:

>>
Christopher Colwell, a neuroscientist at the University of
California, Los Angeles, has first-hand experience with these issues. He and a colleague studied autism in the same genetically modified mouse line, but obtained different results on the same behaviour tests. Eventually they worked out why: Colwell, who studies circadian rhythms, keeps his mice dark in the daytime to trick their body clocks into thinking day is night, so that the nocturnal animals are more alert when tested during the day. His colleague does not.

Colwell notes that disregarding mouse circadian rhythms could bias many behaviour experiments. Most humans would not perform well on social and cognitive tests either if made to do them in the middle of the night, he adds.
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Environmental factors lie behind many irreproducible rodent experiments.
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To reduce CO₂ emissions, fossil fuels consumption needs to be reduced - not wasted on excessive light.

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"Canaries at night, seen by @Astro_Alex from ISS . Night protection laws on LaPalma work! "
@RainerKresken @skyglowberlin @Astro_Alex @HildegardWerth Skylaw is probably working but human pop on La Palma is lower than on main islands. Sorry, Twitter is taking too long to load. Try again. Home · Sign up · Log in · Search · About. More like this; Less like this; Cancel. Not on Twitter?
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From ALAN 2016: "Zeman: There is a need for low-intensity ALAN health studies in 'real life' conditions as opposed to brief bursts of bright light "
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From ALAN 2016: "George Brainard says astronaut studies show small amounts of sleep deprivation is dangerous."
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Alan 2016 - 4th International Conference On Artificial Light At Night

September 26-28, 2016, Cluj-Napoca, Romania

#ALAN2016 on Twitter

(https://twitter.com/hashtag/ALAN2016?src=hash)

Link below is to a page where you can download the Conference Handbook - 165 page pdf document

 (Direct link: http://artificiallightatnight.weebly.com/uploads/3/7/0/5/37053463/alan_booklet-vf.pdf)
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"Night-migrating birds use the moon and the stars as navigational tools along their migration routes. This behavior naturally draws night-migrating birds to the bright lights in the urban centers along their journey.

"In these unfamiliar, urban environments, night-migrating birds often fatally collide with tall, lit buildings. Artificial light is especially confusing to birds on foggy or rainy nights, or when cloud cover is low and the birds fly at lower altitudes."
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Night view over Sinai | International Space Station
This nighttime view of northern Egypt and the Sinai Peninsula was captured by the Expedition 49 crew aboard the International Space Station. The city of Cairo can be seen to the left at the top of the Nile river. Atop the sparsely lit Sinai Peninsula can be seen cities in Israel, including the brightly lit city of Tel Aviv on the Israeli coast along the Mediterranean Sea.

Credit: NASA/JSC, JAXA Astronaut Takuya Onishi of Japan
Release Date: September 16, 2016

+大西卓哉 
+JAXA | 宇宙航空研究開発機構 
+European Space Agency, ESA 
+NASA Johnson Space Center 

#NASA #Space #ISS #Earth #Egypt #Sinai #Peninsula #Israel #TelAviv #Planet #Astronaut #TakuyaOnishi #Japan #日本 #JAXA #FlightEngineer #Human #Spaceflight #Science #Spacecraft #Technology #Expedition49 #STEM #Education #OverviewEffect #OrbitalPerspective #مِصر‎‎ #مَصر #תל אביב-יפו  #تل أَبيب-يافا #מְדִינַת יִשְׂרָאֵל  #دولة إِسْرَائِيل
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Restore our natural, starry skies by reducing inefficient lighting.
Introduction
The Commission for Dark Skies (CfDS) aims to preserve and restore the beauty of the night sky by campaigning against excessive, inefficient and irresponsible lighting that shines where it is not wanted nor needed.

It was founded in 1989 and is part of the British Astronomical Association (BAA) and affiliated with the International Dark-Sky Association (IDA).

The issues raised by light pollution do not only affect astronomers.  Other areas of concern include crime, the environment and health.

Glare and light spill can make it more difficult to see in the dark. Nocturnal wildlife, such as bats and moths, and plants, eg which use day length to monitor seasons, can be affected. So can migrating birds. Intrusive light can, for example, disrupt sleep.

Some of the pages on the Campaign for Dark Skies website:
Publications about light pollution:

Books:

Light Pollution: Responses and Remedies, 2nd Edition, Bob Mizon, Springer, was published on 24 June 2012. The first version of the book is still available: Light Pollution: Responses and RemediesBob Mizon, Springer, 2002. On amazon.co.uk 'Look Inside!' is enabled for both books. The previews include contents and index.


There Once Was a Sky Full of Stars, Bob Crelin and Amie Ziner, Sky Publishing Corporation, 2007.

Reports:

Light Pollution and Astronomy, House of Commons Science and Technology Committee, 2003 [pdf]

Artificial Light in the Environment, The Royal Commission on Environmental Pollution, 2009. [pdf]


Guidance for the Reduction of Obtrusive Light, ILP, 2012. [pdf, automatic download]

A Review of the Impact of Artificial Light on Invertebrates, Charlotte Bruce-White and Matt Shardlow, Buglife, 2011. [pdf]

DVD:

Links