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#earthhour

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Dr. John Barentine FRAS<p>“Using photometric and spectroscopic sensors, we observed up to 50% night sky darkening during Earth Hour from 2011 to 2024 in Hong Kong, primarily as a result of a small but critical number of lights-out instances in central business districts, as evidenced by crowd-sourced photography records. The emission reductions mostly occurred in the 445–500, 500–540, and 615–650 nm spectral ranges---corresponding to peak emissions from LED billboard screens--- and in the 585–595 nm range, associated with metal halide floodlights used for facades and billboards. Our study identifies these sources as major contributors to urban light pollution.” </p><p>(Note: not yet peer reviewed, but the authors are legit.) </p><p><a href="https://www.researchsquare.com/article/rs-6241967/v1" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">researchsquare.com/article/rs-</span><span class="invisible">6241967/v1</span></a></p><p><a href="https://astrodon.social/tags/LightPollution" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LightPollution</span></a> <a href="https://astrodon.social/tags/Cities" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Cities</span></a> <a href="https://astrodon.social/tags/LED" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LED</span></a> <a href="https://astrodon.social/tags/DarkSkies" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DarkSkies</span></a> <a href="https://astrodon.social/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a> <a href="https://astrodon.social/tags/Lighting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Lighting</span></a> <a href="https://astrodon.social/tags/OutdoorLighting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OutdoorLighting</span></a></p>
Dragofix<p>WWF:n Earth Houriin osallistui yli 1,2 miljoonaa suomalaista <a href="https://wwf.fi/uutiset/2025/04/wwfn-earth-houriin-osallistui-yli-12-miljoonaa-suomalaista/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">wwf.fi/uutiset/2025/04/wwfn-ea</span><span class="invisible">rth-houriin-osallistui-yli-12-miljoonaa-suomalaista/</span></a></p><p><a href="https://mastodontti.fi/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a> <a href="https://mastodontti.fi/tags/luonto" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>luonto</span></a> <a href="https://mastodontti.fi/tags/ymp%C3%A4rist%C3%B6" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ympäristö</span></a></p>
hskzoom<p>Ich habe meinen Blogbeitrag zur gestrigen <a href="https://ruhr.social/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a>" um einen Kommentar ergänzt.</p><p>Zitat:</p><p>"Die gestrige „dunkle Stunde“ war sehr angenehm – Zeit zum Nachdenken über Persönliches und Politisches.</p><p>Eine Konsequenz:</p><p>Ich werde in Zukunft NICHT mehr auf den WWF verlinken, solange er eine Weiterleitung zu den Trump-Unterstützern Facebook und X anbietet, aber das demokratische Fediverse (z.B. Meta) ausspart."</p><p>Gleiches gilt ab heute auch für andere Websites. </p><p><a href="https://ruhr.social/tags/WWF" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>WWF</span></a> <a href="https://ruhr.social/tags/Fediverse" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Fediverse</span></a> <a href="https://ruhr.social/tags/Mastodon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mastodon</span></a></p>
Bündnis ZukunftsKlima<p>Eindrücke von der gestrigen <a href="https://climatejustice.global/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a> unter dem Motto "<a href="https://climatejustice.global/tags/LichtAus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>LichtAus</span></a>. Stimme an." am Vierröhrenbrunnen in <a href="https://climatejustice.global/tags/W%C3%BCrzburg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Würzburg</span></a>.</p><p>Vielen Dank an alle, die mitgemacht, unterstützt oder die Versammlung mit uns organisiert haben. 💚🌍</p><p><a href="https://climatejustice.global/tags/EarthHour2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour2025</span></a> <a href="https://climatejustice.global/tags/KlimaSchutz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>KlimaSchutz</span></a></p>
Evan Prodromou<p>I just realized we had a big accidental and involuntary overlap with <a href="https://cosocial.ca/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a>. Neat.</p><p><a href="https://www.earthhour.org/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">earthhour.org/</span><span class="invisible"></span></a></p>
Rachel 🌎✨🕊️<p>Getting ready for <a href="https://mastodon.online/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a>, central time ! 🚫💡<br>For mother Earth. 🌎 For humanity. ❤️🕊️</p>
Chase :ani_clubtwit:<p>It’s <a href="https://twit.social/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a>! Turn off those light, <a href="https://twit.social/tags/AnnArbor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AnnArbor</span></a>! 🌎</p>
👩‍🌾🎓🇺🇦🌈🕊Sylvia & Netti🦮🇵🇹🌞<p><span class="h-card" translate="no"><a href="https://troet.cafe/@CorinnaVahrenk1" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>CorinnaVahrenk1</span></a></span> <br>-Unsere Betten sind bezogen, und in Zimmer sauber,<br>-der <a href="https://nahe.social/tags/sonntagskuchen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sonntagskuchen</span></a> ist im Kühlschrank,<br>-die <a href="https://nahe.social/tags/earthhour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earthhour</span></a> war wie immer gemütlich!<br>Schlaf gut Corinna und träum schön!🥰🤗✨🌙😴🙋🏼‍♀️</p>
penpencilbrush🇨🇦<p>Earth Hour Day</p><p>Like time travelling. Before electricity.<br>Good time to pause and make a plan to do something about saving our beautiful blue home.🌎 </p><p><a href="https://mstdn.social/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a> </p><p><a href="https://www.earthhour.org/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">earthhour.org/</span><span class="invisible"></span></a></p>
European Commission<p>The lights are off tonight at our Brussels headquarters, in support of <a href="https://ec.social-network.europa.eu/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a>. </p><p>Every year, the world's largest environmental movement reminds us that even small actions can make a great difference for our planet. </p><p>Turn your lights off and join us!</p>
★Pope Miller the Defondor<p><span class="h-card" translate="no"><a href="https://loma.ml/profile/schoenswetter" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>schoenswetter</span></a></span> Das ist nichts als lächerlicher Symbolismus, sorry.<br>Ich habe kein Auto, seit 30 Jahren keinen Urlaub, keine Wasch- oder Spülmaschine. Ich mach da nicht mit.<br><a href="https://ruhr.social/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a> ist genauso Bullshit wie das Klatschen auf den Balkonen während der Corona-Pandemie.</p>
Mossad-Ultrá Oliver 📟<p>Heute kein Foto für dich - dieser Tröt kommt besonders datenvolumenschonend zu dir. <a href="https://die-partei.social/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a></p>
lyte :vegan: :antifa:<p>Von der degradierenden Aussage:</p><p>"Es sind doch nur Tiere.." </p><p>ist es gar nicht weit zu:</p><p>"Es sind doch nur Frauen.."<br>"Es sind doch nur Ausländer.."<br>"Es sind doch nur Juden/Muslime.."</p><p>Der Mensch hat vergessen ebenfalls "nur" ein Tier zu sein. Sie sind nicht für uns hier, sondern mit uns.</p><p>Du hast eine Wahl, sie nicht. <a href="https://norden.social/tags/veganfortheanimals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>veganfortheanimals</span></a> </p><p>Statt 'ne Stunde das Licht auszumachen, macht etwas, was wirkt. <a href="https://norden.social/tags/govegan" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>govegan</span></a> </p><p><a href="https://norden.social/tags/earthhour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earthhour</span></a> <a href="https://norden.social/tags/animalliberation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>animalliberation</span></a> <a href="https://norden.social/tags/humanliberation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>humanliberation</span></a> </p><p>:vegan:</p>
Vorstadtgruen<p>Ihr habt noch eine halbe Stunde Zeit die Kerzchen aufzustellen, um 1 Stunde auf Strom zu verzichten. Ab 20.30 Uhr ist <a href="https://dresden.network/tags/earthhour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earthhour</span></a>.</p>
Jorma58<p>Dags att börja med förberedelse till Earth Hour, hoppas att ni ställer upp🙏🏻 Vi kör vårt eget “race” från kl. 20.00-22.00, vi släcker ner allt utom kyl och frys. Ha en underbar lördag alla💚🌎🌎💚 <a href="https://mastodon.nu/tags/wwf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>wwf</span></a> <a href="https://mastodon.nu/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a> <a href="https://mastodon.nu/tags/milj%C3%B6" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>miljö</span></a> <a href="https://mastodon.nu/tags/klimat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>klimat</span></a></p>
Leo Fischhuber<p><span class="h-card" translate="no"><a href="https://loma.ml/profile/schoenswetter" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>schoenswetter</span></a></span> ich wäre gerne bei der <a href="https://wien.rocks/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a> dabei, allerdings bin ich seit ca 2 Wochen mit beiden Haushälften autark. Aber ich werde trotzdem solidarisch die Lichter ausmachen 😉</p>
Karl SchönswetterIn 2h ist <a href="https://loma.ml/search?tag=EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a>. Nicht vergessen!
Ma Quest :ablobjam:<p>Counting down to Earth Hour! 🌍 <br />An early start for <a href="https://mastodon.green/tags/SolarPunkSunday" class="mention hashtag" rel="tag">#<span>SolarPunkSunday</span></a><br /><a href="https://www.earthhour.org/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://www.</span><span class="">earthhour.org/</span><span class="invisible"></span></a><br /><a href="https://mastodon.green/tags/EarthHour" class="mention hashtag" rel="tag">#<span>EarthHour</span></a></p>
Eva-Maria Faber<p>Earth Hour 2025. Ich frage mich zwar, wie viel das bringt. Lieber wäre mir, die Lichtverschmutzung würde grundsätzlich eingegrenzt. Aber schaden wird es nicht. Vielleicht wächst die Lust auf regelmässige "Star watcher hours". Um mehr Freude am Leben und Staunen im Kosmos zu nähren. Es ist ja nicht primär Verzicht, sondern Pflege besserer Lebenskultur!<br><a href="https://swiss.social/tags/earthhour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earthhour</span></a></p>
cashinmortgages<p>It's Earth Hour! 🌍💡 Let’s join together by turning off our lights for one hour to raise awareness for climate action and show our commitment to a sustainable planet. Every small step counts toward a brighter future. 💚 <a href="https://mastodon.social/tags/EarthHour" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EarthHour</span></a> <a href="https://mastodon.social/tags/ClimateAction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ClimateAction</span></a> <a href="https://mastodon.social/tags/Sustainability" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Sustainability</span></a> <a href="https://mastodon.social/tags/MakeADifference" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MakeADifference</span></a> #<a href="https://mastodon.social/tags/CashinMortgages" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CashinMortgages</span></a></p>
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