Darkness News
City 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.
Read MoreLight Pollution from Coastal Cities can Damage Coral Reefs
May 22, 2023 - KTBS
Light at night near the coast is causing coral to begin spawning too early in the year, leading to a decline in overall coral growth.
Read MoreCaledon, On Considers Lighting Bylaw
May 19, 2023 - Caledon Enterprise
Councillor Doug Maskell has proposed a new bylaw protecting night skies in the southern Ontario town. The municipality does not have any lighting laws on the books.
Read MoreScottish Island Seeks ‘Dark Sky’ Statu
May 18, 2023 - BBC Science
Rùm, a 40 square mile island with a population of 40 in the Hebrides, has begin raising funds in order to apply for recognition for the IDA. The island is home to the UK’s largest population of manx shearwaters and no street lights.
Read MoreCharting Light Pollution over Hawai’i
May 17, 2023 - Big Island Now
The IAU’s Michael Martin presented his findings to the Hawai’i County Council on the 19th. Only 12 percent of stars that should be visible over suburban neighborhoods on the Big Island. His report also urged action for the health of human and animal inhabitants of the island.
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