Darkness News
Henderson, NC Passes New Lighting Ordinances
February 15, 2023 - Blue Ridge Now
The first ordinance approved by City Council will limit backlight that crosses property lines, prohibit uplight of any kind, and ban floodlighting. There are exceptions for construction projects, special occasions, and approved ornamental lighting and signage. NEw construction must show documents of planned compliance immediately, Council has yet to set a timetable for existing buildings to comply. The second ordinance will mandate shielding on all street lighting.
Read MoreCzech Lighting Regulations Come into Effect March 1
February 14, 2023 - Brno Daily
New lighting installations in the Czech Republic will have a maximum output level. 5 specialty applications will have their own rules specific to uplight and glare.
Read MoreLondon’s Light Pollution is So Intense it can Power Solar Cells
February 13, 2023 - The Telegraph
The uplight and glare from the UK capital’s skyscrapers, street lighting, and signage that it can be used to power devices. Kerem Asfuroglo of Dark Source has built an umbrella of photovoltaic material that was able to power lighting while standing in Piccadilly Circus.
Read MoreKetogenic Diets Found to Improve Energy Levels of the Sleep Deprived
February 10, 2023 - Journal of Sleep Research
A joint study from the University of New Zealand and the NZ Defense Force have found that during prolonged periods of wakefulness (more than 36 hours) a diet rich in ketone bodies such as fatty acids improved perception of wakefulness, energy, and mood compared to a carbohydrate-rich diet.
Read MoreDesign Lights Consortium Extends Light Pollution Proposal Deadline
February 9, 2023 - DLC
A request for proposals to consult on light pollution and energy efficiency case studies and control strategies has been extended until the 14th of February. Proposals will be judged on 5 criteria, including industry experience, social equity, and costs.
Read MoreCircadian Clock Influences Vaccine Response
February 8, 2023 - Nature Communications
Cell response to Hepatitis A and SARS-Cov-2 varies with time of day according to a paper from the Department of the University of Geneva, Switzerland. These researchers have developed a scheduling plan to maximize effectiveness.
Read MoreMusculoskeletal System Health Linked with Circadian Rhythm
February 7, 2023 - Nutrients
A multi-university team in Malaysia has determined that a well maintained circadian rhythm (particularly in terms of timing food intake) can improve the condition of those suffering from musculoskeletal disorders.
Read MoreCity of Rocks is Now a Dark Sky Park
February 6, 2023
The US National Reserve in southern Idaho has been certified by the International Dark Sky Association. The 10,000 acres of of state and federally owned land has launched new dark sky and astrotourism-related programs to celebrate the milestone.
Read MoreScientific Consensus Reached: Blue Light Harms Circadian Rhythms
February 2, 2023 - Research Square
Martin Moore-Ede of the Circadian Light Research Center has published a paper reporting on the considered opinions of 248 scientists and the findings of 2,697 peer-reviewed papers confirming the blue-rich lighting are harmful to humans when used at night.
Read MoreDesign Lights Consortium to Presented of Responsible Outdoor Lighting
February 2, 2023 - DLC
A hybrid event, held on the first of February, was presented jointly with the Illuminating Engineering Society, the International Dark Sky Association and Hawai’i Energy. The two hour panel featured Graceson Ghen, Sheldon Plentovich, Leora Radetsky, and Richard Wainscoat on ALAN’s effects on wildlife and how to evaluate light sources to reduce that impact.
Read MoreContentious Lighting in Outer Battery, Newfoundland has been Extinguished
February 1, 2023 - CBC News Nfld & Labrador
After months of pressure from neighbors, as well as jurisdictional regulatory debate, high-powered security lighting on a home near St John’s has been turned off. The homeowner in question has also been accused of harassment and other unneighborly behavior.
Read MorePetition for Dark Sky Laws in New Zealand
January 31, 2023 - New Zealand Parliament
An open petition to the parliament of New Zealand asks for regulations similar to France and Croatia. The petition has 78 days to gather signatures before being presented to parliament.
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