Darkness News
Pennington, NJ Targets Unshielded Lighting
February 22, 2023 - Central Jersey
The southern New Jersey town has amended its nuisance ordinance such that unshielded fixtures (which is to say any fixture that does not direct light downward or prevent spill across property lines) must be turned off between 10pm and sunrise. This explicitly included motion-sensor activated devices.
Read MoreLondon Proposes Dimming Lighting in Skyscrapers after 10
February 21, 2023 - Daily Mail
The City of London Corporation has proposed ‘brightness zones’ that would require dimming or extinguishing unnecessary lighting at different times. The city has also asked land owners to sign on to a voluntary Considerate Lighting Charter.
Read MoreLight Pollution is Extending Allergy Season
February 17, 2023 - OGP
Iowa State University has found that across 3,000 sites in the US light intensity has caused flowering plants to emit pollen 6 days earlier than is seasonal appropriate.
Read MoreDurango, CO Begins Dark Sky Mentorship
February 16, 2023 - Local News Network
The International Dark Sky Association and the Colorado Tourism Office has begin a new program in the southern Colorado town to teach the value of night restoration. The aim of this program is to reduce the 8 year timetable for Dark Sky Community certification.
Read MoreHenderson, 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 More