Darkness News
Bruneau Dunes Hosts State’s Largest Observatory
June 7, 2023 - Idaho Statesman
The southern Idaho park held a ceremony to mark the opening of the new observatory last Thursday. The Parks and Recreation department also announced that the park was seeking recognition from DarkSky.
Read MorePancreatic Cancer Disrupts Circadian Clocks
June 6, 2023 - Plos Genetics
Oncologists and surgeons at the University of Wisconsin School of Medicine and Public Health have determined that pancreatic cancer tissue has ‘substantially’ attenuated circadian clock response. The arhythmic clock accelerates cancer growth. This is in contrast to other studies that show that disrupted circadian rhythms are a contributing factor in the development of cancer.
Read MoreNew Name and Look for the IDA
June 5, 2023 - DarkSky.org
The International Dark Sky Association will now operate as DarkSky as part of a program to “modernize the brand” that include a new logo and branding kits for local chapters.
Read MoreMinnesota State University Moorhead Regional Science Center has a Light Pollution Problem
June 2, 2023 - InForum
The skyglow dome over Fargo-Moorhead causing trouble for the Physics and Astronomy department as well as the neighboring Buffalo River State Park. Advocates from the school and the IDA have met with the mayors of both towns in hopes of improving lighting regulations in the area.
Read MoreCity Lights Do More Than Bug Bugs
June 1, 2023 - Journal of Applied Ecology
A study published by the British Ecological Society has found that declines in moth populations in rural regions is causally linked with increased brightness at night due to urban skyglow. The authors of the research call for a limitations on brightness and uplight from fixtures.
Read MoreTravis Longcore Publishes Highway Lighting Report
May 31, 2023 - STATE OF CALIFORNIA • DEPARTMENT OF TRANSPORTATION
The 190-page document presented to the California Department of Transportation outlines the effects of LED street and roadway lighting on local wildlife. The report also offers mitigation strategies for the harms of ALAN as LEDs become more common in CalTrans projects.
Read MoreCharting Light at Night Near The Mangroves of the South and East China Seas
May 30, 2023 - Frontiers in Marine Science
A study of data from 1992-2020 by the University of Chinese Academy of Sciences shows that light pollution near mangrove forests has increased drastically (as much as 52% brighter) as coastal regions urbanize. Also notable was that Taiwanese nature reserves created around mangrove forests slowed the rate of increase compared to unprotected forests, even without specific lighting bylaws nearby.
Read MoreRed-Through-Yellow Lighting is Best for Sleep
May 29, 2023 - Sleep Foundation
An article from Dr. Pranshu Adavadkar, cross-referencing 11 papers, indicates that red lighting is ideal for sleep with orange to yellow being acceptable in terms of circadian entrainment.
Read MorePoint Pelee National Park Offers Self-Guided Dark Sky Nights
May 26, 2023 - Parks Canada
Once a month, the southwestern Ontario park will be open until midnight and will host a speaker from the Royal Astronomical Society. Guests will then be offered a star chart and allowed to explore the night on their own.
Read MoreEarthworm Mating Season Threatened by ALAN
May 25, 2023 - Time News
While eyeless, earthworms can sense light through their skin and will only begin their hours-long mating process at night near the surface. Lighting at night does disrupt this. The German Wildlife Foundation is asking homeowners to keep lighting to a minimum during May mating season.
Read MoreCity of South Lake Tahoe Updates Lighting on US 50
May 24, 2023 - 2 News
900 fixtures in California, near the Nevada border will be swapped out for 2,500 Kelvin LED lamps. City COuncil also met to discuss expanding the lighting retrofit program.
Read MoreLondon To Dim Light
May 23, 2023 - SW Londoner
The City of London Corporation has signed onto the Lighting Urban Community International’s declaration on urban lighting. Their commitment takes the form of using planning powers to compel developers to reduce light at night in The Square Mile, London’s city center and financial district.
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