Blue Light @ Night

[David B. Benson]

Coastal cities leave up to 75% of seafloor exposed to harmful light pollution
Mr Alan Williams
2020 Jul 30
Phys.org
phys.org/news/2020-07-coastal-cities-seafloor-exposed-pollution.html

Other studies show that modern LED outdoor lighting is harmful to nocturnal land animals, including insects. This study relates to sealife.

[David B. Benson]

Artificial night lighting has widespread impacts on nature
2020 Nov 02
Phys.org
phys.org/news/2020-11-artificial-night-widespread-impacts-nature.html

In this study, all colors of light.

[David B. Benson]

Light pollution at night severely disrupts the reproductive cycle of corals
2020 Nov 05
Phys.org
phys.org/news/2020-11-pollution-night-severely-disrupts-reproductive.html

Of course blue light is worse as it penetrates more deeply.

[David B. Benson]

Reducing blue light with a new type of LED that won't keep you up at night
2021 Apr 28
ScienceDaily
www.sciencedaily.com/releases/2021/04/210428140852.htm

Prototype. Perceived white light without a blue phosphor.

[David B. Benson]

LED streetlights contribute to insect population decline: study
2021 Aug 25
phys.org
phys.org/news/2021-08-streetlights-contribute-insect-population-declines.html

Study of road verge in England.

[David B. Benson]

Study shows advances in street lighting are reducing the efficacy of coastal species’ camouflage
2026 Mar 26
Phys.org
phys.org/news/2022-03-advances-street-efficacy-coastal-species.html

Both intensity and spectrum make a difference.

[David B. Benson]

The dark side of Leds: Suppression of melatonin by blue light
Thomas Crow
2022 Sep 09
Phys.org
phys.org/news/2022-09-dark-side-suppression-melatonin-blue.html

Blue light at night is bad for wallabies’ sleep, and also yours.

[David B. Benson]

Night skies are getting 9.6% brighter every year as light polution erases stars for everyone
Chis Impey & Connie Walker
2023 Feb 23
Phys.org
phys.org/news/2023-02-night-skies-brighter-year-pollution.html

Does not mention the effects on nocturnal creatures.