#earthhour — Public Fediverse posts

🌍 Vanavond is het alweer de 20ste editie van #WWF #EarthHour! 🌏

De dag waarin wij met zijn allen stil staan bij hoe kostbaar onze aarde is. Doe jij ook mee? Zet dan tussen 20:30 uur en 21:30 uur al je lichten uit! 💡❌ -> 🕯✅

Samen geven we zo een krachtig signaal af: de #natuur op onze #aarde is van onschatbare waarde. Dus laten we er goed voor zorgen. #Natuurlijk 🌿💚

#earthhour #lightsoff #savetheplanet #noplanb #pvddalkmaar #alkmaar #pvdd #partijvoordedieren #partijvddieren #planbvooralkmaar

“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.”

(Note: not yet peer reviewed, but the authors are legit.)

https://www.researchsquare.com/article/rs-6241967/v1

#LightPollution #Cities #LED #DarkSkies #EarthHour #Lighting #OutdoorLighting

Daily #Hashtags for March

Mar 01
#ZeroDiscriminationDay

Mar 02
#WorldBookDay

Mar 03
#WorldWildlifeDay

Mar 04
#EmployeeAppreciationDay

Mar 05 •
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Mar 07 •

Mar 08
#InternationalWomensDay

Mar 09
#BarbieDay #NoSmokingDay

Mar 10 •
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Mar 14
#PiDay #InternationalDayofActionForRivers

Mar 15
#IdesofMarch

Mar 16 •

Mar 17
#RedNoseDay #StPatricksDay

Mar 18
#GlobalRecyclingDay #RobotDay

Mar 19
#WorldSleepDay

Mar 20
#Equinox #InternationDayofHappiness #WorldFrogDay

Mar 21
#EarlyMusicDay #WorldForestryDay #WorldPoetryDay

Mar 22
#WorldWaterDay #EarthHour

Mar 23
#WorldMeteorologicalDay

Mar 24-30 #ShakespeareWeek

Mar 25
#TolkienDay

Mar 26
#PurpleDayofEpilepsy

Mar 27
#WorldTheatreDay

Mar 28 •

Mar 29
#PianoDay

Mar 30 •

Mar 31
#WearAHatDay

(See Index for More Hashtags)

Daily #Hashtags for March

Mar 01
#ZeroDiscriminationDay

Mar 02
#WorldBookDay

Mar 03
#WorldWildlifeDay

Mar 04
#EmployeeAppreciationDay

Mar 05 •
Mar 06 •
Mar 07 •

Mar 08
#InternationalWomensDay

Mar 09
#BarbieDay #NoSmokingDay

Mar 10 •
Mar 11 •
Mar 12 •
Mar 13 •

Mar 14
#PiDay #InternationalDayofActionForRivers

Mar 15
#IdesofMarch

Mar 16 •

Mar 17
#RedNoseDay #StPatricksDay

Mar 18
#GlobalRecyclingDay #RobotDay

Mar 19
#WorldSleepDay

Mar 20
#Equinox #InternationDayofHappiness #WorldFrogDay

Mar 21
#EarlyMusicDay #WorldForestryDay #WorldPoetryDay

Mar 22
#WorldWaterDay #EarthHour

Mar 23
#WorldMeteorologicalDay

Mar 24-30 #ShakespeareWeek

Mar 25
#TolkienDay

Mar 26
#PurpleDayofEpilepsy

Mar 27
#WorldTheatreDay

Mar 28 •

Mar 29
#PianoDay

Mar 30 •

Mar 31
#WearAHatDay

(See Index for More Hashtags)

Daily #Hashtags for March

Mar 01
#ZeroDiscriminationDay

Mar 02
#WorldBookDay

Mar 03
#WorldWildlifeDay

Mar 04
#EmployeeAppreciationDay

Mar 05 •
Mar 06 •
Mar 07 •

Mar 08
#InternationalWomensDay

Mar 09
#BarbieDay #NoSmokingDay

Mar 10 •
Mar 11 •
Mar 12 •
Mar 13 •

Mar 14
#PiDay #InternationalDayofActionForRivers

Mar 15
#IdesofMarch

Mar 16 •

Mar 17
#RedNoseDay #StPatricksDay

Mar 18
#GlobalRecyclingDay #RobotDay

Mar 19
#WorldSleepDay

Mar 20
#Equinox #InternationDayofHappiness #WorldFrogDay

Mar 21
#EarlyMusicDay #WorldForestryDay #WorldPoetryDay

Mar 22
#WorldWaterDay #EarthHour

Mar 23
#WorldMeteorologicalDay

Mar 24-30 #ShakespeareWeek

Mar 25
#TolkienDay

Mar 26
#PurpleDayofEpilepsy

Mar 27
#WorldTheatreDay

Mar 28 •

Mar 29
#PianoDay

Mar 30 •

Mar 31
#WearAHatDay

(See Index for More Hashtags)

Daily #Hashtags for March

Mar 01
#ZeroDiscriminationDay

Mar 02
#WorldBookDay

Mar 03
#WorldWildlifeDay

Mar 04
#EmployeeAppreciationDay

Mar 05 •
Mar 06 •
Mar 07 •

Mar 08
#InternationalWomensDay

Mar 09
#BarbieDay #NoSmokingDay

Mar 10 •
Mar 11 •
Mar 12 •
Mar 13 •

Mar 14
#PiDay #InternationalDayofActionForRivers

Mar 15
#IdesofMarch

Mar 16 •

Mar 17
#RedNoseDay #StPatricksDay

Mar 18
#GlobalRecyclingDay #RobotDay

Mar 19
#WorldSleepDay

Mar 20
#Equinox #InternationDayofHappiness #WorldFrogDay

Mar 21
#EarlyMusicDay #WorldForestryDay #WorldPoetryDay

Mar 22
#WorldWaterDay #EarthHour

Mar 23
#WorldMeteorologicalDay

Mar 24-30 #ShakespeareWeek

Mar 25
#TolkienDay

Mar 26
#PurpleDayofEpilepsy

Mar 27
#WorldTheatreDay

Mar 28 •

Mar 29
#PianoDay

Mar 30 •

Mar 31
#WearAHatDay

(See Index for More Hashtags)

Daily #Hashtags for March

Mar 01
#ZeroDiscriminationDay

Mar 02
#WorldBookDay

Mar 03
#WorldWildlifeDay

Mar 04
#EmployeeAppreciationDay

Mar 05 •
Mar 06 •
Mar 07 •

Mar 08
#InternationalWomensDay

Mar 09
#BarbieDay #NoSmokingDay

Mar 10 •
Mar 11 •
Mar 12 •
Mar 13 •

Mar 14
#PiDay #InternationalDayofActionForRivers

Mar 15
#IdesofMarch

Mar 16 •

Mar 17
#RedNoseDay #StPatricksDay

Mar 18
#GlobalRecyclingDay #RobotDay

Mar 19
#WorldSleepDay

Mar 20
#Equinox #InternationDayofHappiness #WorldFrogDay

Mar 21
#EarlyMusicDay #WorldForestryDay #WorldPoetryDay

Mar 22
#WorldWaterDay #EarthHour

Mar 23
#WorldMeteorologicalDay

Mar 24-30 #ShakespeareWeek

Mar 25
#TolkienDay

Mar 26
#PurpleDayofEpilepsy

Mar 27
#WorldTheatreDay

Mar 28 •

Mar 29
#PianoDay

Mar 30 •

Mar 31
#WearAHatDay

(See Index for More Hashtags)