#ALAN

Dr. John Barentine FRASJohnBarentine@scicomm.xyz
2026-01-08

“Collectively, our findings highlight a previously underrecognized pathway by which urbanization alters vegetation #phenology, with implications for forecasting #ecosystem dynamics under continued #urban growth and climate change.” nature.com/articles/s41467-025

Phenology (sometimes called “nature’s calendar”) and senescence refers to the process by which trees and other deciduous plants put on and drop their leaves. If they do so at the wrong times, the results can be catastrophic, e.g., trees still in leaf in the fall can be brought down by early-season snow events.

#Plants #ALAN #LightPollution

Dr. John Barentine FRASJohnBarentine@scicomm.xyz
2026-01-08

"This systematic review provides evidence of an association between #ALAN exposure and #sleep disturbance. However, current research is still limited by methodological challenges. Nevertheless, preventive measures are required, including reducing nighttime #lighting and increasing public and policy awareness."

sciencedirect.com/science/arti

#LightPollution

Forest plot from a random-effects meta-analysis showing the association between artificial light at night (ALAN) exposure and sleep outcomes across 10 studies. Individual studies (Gabinet 2021; Hu 2022; Ikeda 2014; Johnson 2024; Koo 2016; Ohayon 2016; Patel 2019; Wang 2022; Zare Sakhvidi 2025; Zhong 2021) are listed on the left, with gray squares representing study-specific prevalence ratios (PRs) and horizontal lines showing 95% confidence intervals. Most point estimates are greater than 1, indicating worse sleep outcomes with ALAN exposure; two studies (Ikeda 2014 and Johnson 2024) show statistically significant effects with confidence intervals not crossing 1. The pooled random-effects estimate is shown as a green diamond with a PR of 1.27 (95% CI 1.12–1.45), indicating a higher prevalence of sleep problems associated with ALAN. Study weights range from about 8% to 15%. Heterogeneity is moderate to substantial (I² = 65.8%, τ² = 0.027, p = 0.0018).
Dr. John Barentine FRASJohnBarentine@scicomm.xyz
2026-01-08

Another light pollution/health study using the massive UK #BioBank dataset. “Our findings provide evidence that a higher #ALAN exposure is associated with an increased risk of incident [ulcerative colitis], with a significant dose-response relationship, but not with [Crohn’s disease]. Further studies are needed to elucidate the impact of outdoor ALAN on disease pathogenesis and outcomes.”

frontiersin.org/journals/publi

#HumanHealth #LightPollution

2026-01-06

“SALIGIA. Le 7 vie del vizio” degli Alan+ al Caffè degli Artigiani di Firenze con Matias Mesquita
"SALIGIA. Le 7 vie del vizio" (libro+cd Edizioni I libri di Mompracem – 2024)  è un'opera che combina scrittura e musica per immergere il lettore/ascoltatore nelle "stazion
perunaltracitta.org/homepage/2
#FirenzeEDintorni #Alan #CaffDegliArtigianiDiFirenze #musica #SALIGIA

2025-12-12

New publication: Dimming #streetlights in urban areas reduces #insect attraction but pipistrelle #bats forage more in darkness. #ALAN #foraging #lightpollution
doi.org/10.1016/j.biocon.2025.

Figure 1 in Buddendorf et al. (2025): "Nightly counts of flying insects (left), pipistrelle bat passes (middle) and their feeding buzzes (right) per treatment (dark control: 0.16 ± 0.03 lx, low: LED 3000 K, 4.4 ± 1.4 lx, high: LED 3000 K, 17 ± 3.8 lx). Significance levels indicated as ns: p > .05, ***: p < .001."
Dr Sam Morrellsmorrell
2025-12-10

Sharing some good news from . Devon County Council have been proactive in implementing part-night lighting and dimming in their installation. This has come with sizeable monetary and carbon savings, but also reduces the temporal and spatial extent of across Devon, likely reducing ecological pressure on organisms at nighttime.

News article: bbc.co.uk/news/articles/cpvdnz

2025-12-09

Artist: Alan Walker
Title: Me, Myself and The Night
Genre: Jazz - source: Discogs (/release/2618272-Various-The-BestAnd-Friends-Album-In-The-WorldEver)
Deezer: deezer.com/track/3376956981 | YouTube: youtube.com/watch?v=nSkDpIj0Y7w | SoundCloud: soundcloud.com/alanwalker/me-m
#Jazz #Deezer #SoundCloud #YouTube #EDM #Playlist #Electronic #Alan #Walker #Me,

Dr. John Barentine FRASJohnBarentine@scicomm.xyz
2025-12-03

“These findings support the hypothesis that celestial bodies are used to optimise movement, an ancestral mechanism in insects, and indicate that even species evolved to live in dark forest habitat and partly underground, use such mechanism. However, this species’ navigation may not be affected by artificial light at night.”

link.springer.com/article/10.1

#Animals #Insects #Beetles #Ecology #Wildlife #LightPollution #ALAN

AnimeNewsDaily.uspeppy6582
2025-11-29

📰 Discover Everything About Alan: A Comprehensive Guide

Explore the fascinating world of Alan, delving into his character development, key moments, and impact on the storyline. This guide provides a detailed analysis of Alan's role and significance, offering fans a deeper understanding of his journey....

🔗 Read more: animenewsdaily.us/articles/444

'sAdventures

Discover Everything About Alan: A Comprehensive Guide
Environmental Psych Viennaenvpsyvienna
2025-11-27

Hélène Zillig presents her research at the 2025!

She merged over 1,400 nighttime visits to with satellite data measuring Artificial Light at Night () to explore how the brightness of a location relates to perceived and . 🌃

Hélène Zillig presents her research at the ENLIGHT Conference 2025
Philippe PoupouMc_Chouffe@mamot.fr
2025-11-24

Ui bonjour c'est les RH. C'était pour dire que les cotises pour la formule qui rembourse un peu moins mal de la complémentaire santé pour laquelle on a choisi de confier le marché à une start-up de merde augmente de 14% dès la 2ème. #Alan

2025-11-23

Hardly a dry seat in the house as Paschal Donohoe makes his exit – The Irish Times

“And Sally O’Brien and the way she might look at you…” Older readers will remember that famous line…
#NewsBeep #News #Headlines #alan-kelly #AshlingMurphy #dail-eireann #DannyHealy-Rae #department-of-finance #DonaldTrump #fine-gael #HildegardeNaughton #IE #Ireland #mariasteen #MichaelHealy-Rae #PaschalDonohoe #simonharris #SinnFéin #social-democrats #WorldBank
newsbeep.com/266861/

delongdelong
2025-11-19

Just What Do Trump's "Trade Deals" Consist of? Nothing
Malaysia deals with a chaos-monkey superpower: empty appeasement coupled with steps at derisking via exit from coupled arrangements that create vulnerabilities…
<braddelong.substack.com/p/just>
2025-11-19 We
-what-do-trumps-trade-deals-consist-of-nothing
-trade-deals
-monkeys
-beattie


2025-11-13

@JohnBarentine

#LightPollution #plants #ecosystem #photosynthesis #carbon #atmosphere #ALAN

"...emit more carbon than they absorb..." 😳

TURN OFF THE DAMN LIGHTS!!!

Dr. John Barentine FRASJohnBarentine@scicomm.xyz
2025-11-13

If this result holds up, it’s potentially big: nature.com/articles/s41558-025

In short, it implies that #LightPollution is decreasing the efficiency with which #plants remove carbon from the atmosphere. It concludes that artificial light at night increases “#ecosystem respiration” (plants, microbes, and animals releasing carbon dioxide through their activity and growth), but there is no corresponding increase in #photosynthesis.

The result is that plants exposed to ALAN emit more #carbon than they absorb from the #atmosphere. The authors write: “Our findings show that ALAN disrupts the fundamental energetic constraints on ecosystem metabolism, warranting the inclusion of light pollution in global change and carbon–climate feedback assessments.”

#ALAN

Raul Cerveira Lima 🇪🇺raulclima@mastodon.green
2025-11-13

No próximo dia 25 (10h30 - 12h30) decorre o 4.º webinar do ciclo dedicado ao #astroturismo promovido pelo Turismo de Portugal. Serei um dos oradores, num painel que conta com Antonia Varela, Elisa Teixeira e Diana Del Negro. Abordarei a problemática da #PoluiçãoLuminosa (=luz artificial à noite) e da necessidade urgente de pôr em prática (as) soluções para diminuí-la drasticamente.
Participação livre através do link (Teams) na página a seguir:

turismodeportugal.pt/pt/agenda

#ALAN #biodiversidade

Poster do Turismo de Portugal representando um astrofotógrafo (silhueta) numa região montanhosa, com fundo estrelado, incluindo a Via Láctea. 
CICLO DE WEBINARS ASTROTURISMO
Destinos distintivos | Experiências diferenciadoras
A importância do céu noturno para o turismo e para as comunidades
25 Nov 2025
2025-11-13

artificial light at night (ALAN) is increasing carbon released by plants and animals across continents—without any increase in the carbon they absorb.

phys.org/news/2025-11-pollutio
#lightpollution #cop30 #climatechange #light #alan #nature #science

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