Discover and read the best of Twitter Threads about #lightpollution
Most recents (10)
...its our currency so lets start with the paper:
Accepted just Thu its available online already today
doi.org/10.1016/j.jqsr…
Zoltán Kolláth identified Sölktäler Naturpark (village of Mößna) in Austria as one of the best dark sky sites in Europe
all-sky images below
1/x
Accepted just Thu its available online already today
doi.org/10.1016/j.jqsr…
Zoltán Kolláth identified Sölktäler Naturpark (village of Mößna) in Austria as one of the best dark sky sites in Europe
all-sky images below
1/x
we trace the changes in the natural color spectrum of the night sky with spectral radiance measurements
Sölktal has a broad continuum and the natural lines but hardly any spectral features of LEDs or conventional lighting technology - which Zselic has
2/x
Sölktal has a broad continuum and the natural lines but hardly any spectral features of LEDs or conventional lighting technology - which Zselic has
2/x
Zselic was one of the two first @IDADarkSky parks in Europe and it has amazing skies and really nice infrastructure
visitors centre with planetarium
observation spots
panoramic tower
zselicicsillagpark.hu/en.php
see also:
3/x
visitors centre with planetarium
observation spots
panoramic tower
zselicicsillagpark.hu/en.php
see also:
3/x
Have LED lights reduced #LightPollution, or have things gotten worse because of blue light emissions? We have the answer, and it's not good news...
🧵 below, full methodology and results new in @sciencemagazine: science.org/doi/10.1126/sc… #ScienceResearch
(1/)
🧵 below, full methodology and results new in @sciencemagazine: science.org/doi/10.1126/sc… #ScienceResearch
(1/)
Before I tell you what we did, I want you to understand why this is important. Skyglow is a visible symbol of our failure to transition to a sustainable society.
In addition, if skyglow is growing, then all of the ecological impacts of #LightPollution are probably too. (2/)
In addition, if skyglow is growing, then all of the ecological impacts of #LightPollution are probably too. (2/)
So what did we do? It all starts with the #CitizenScience project Globe at Night (GaN), which you've probably seen me boosting before. In GaN, participants select which of a set of star charts most closely matches the sky they see. (3/)
Light Pollution - a thread.
Today will see members of the House of Lords debate an amendment to the #EnvironmentBill that would require national targets on reducing #LightPollution. Read the thread below for just some of the reasons why targets are needed. 1/
📷William Warby
Today will see members of the House of Lords debate an amendment to the #EnvironmentBill that would require national targets on reducing #LightPollution. Read the thread below for just some of the reasons why targets are needed. 1/
📷William Warby
Invertebrates
#LightPollution impacts invertebrates at all stages of their lives. Areas lit by streetlights have 50% less caterpillars. One third of insects attracted to lights die as a result. And nocturnal pollinator visits are reduced by over 60%. buglife.org.uk/campaigns/ligh… 2/
#LightPollution impacts invertebrates at all stages of their lives. Areas lit by streetlights have 50% less caterpillars. One third of insects attracted to lights die as a result. And nocturnal pollinator visits are reduced by over 60%. buglife.org.uk/campaigns/ligh… 2/
Mammals
Hedgehogs avoid lighting, restricting their movement. #LightPollution causes many problems for bats, disrupting their roost, feeding and navigation. 3/
Hedgehogs avoid lighting, restricting their movement. #LightPollution causes many problems for bats, disrupting their roost, feeding and navigation. 3/
Daily Bookmarks to GAVNet 04/29/2021 greeneracresvaluenetwork.wordpress.com/2021/04/29/dai…
What life conditions drove you to work for societal and cultural transformation?
campus-coevolve.org/what-life-cond…
#transformation #society #culture #biography #LifeConditions
campus-coevolve.org/what-life-cond…
#transformation #society #culture #biography #LifeConditions
Large-scale origami locks into place under pressure
nature.com/articles/d4158…
#LargeScale #OrigamiDesign #FacilityStructures
nature.com/articles/d4158…
#LargeScale #OrigamiDesign #FacilityStructures
Daily Bookmarks to GAVNet 04/08/2021 greeneracresvaluenetwork.wordpress.com/2021/04/08/dai…
15 VISUAL INSIGHTS FROM THE GROWTH LAB IN 2020
growthlab.app/best-of-2020
#DataVisualization #GraphicRepresentation #modeling
growthlab.app/best-of-2020
#DataVisualization #GraphicRepresentation #modeling
About a year ago we had the 1st #covidlockdown in Germany
I'm the stay-home homeschooling dad - my wife is a medical doctor
But I could work @ night which I do often anyway
I did measure the night sky brightness and found it had decreased compared to before lockdown (1/12)
I'm the stay-home homeschooling dad - my wife is a medical doctor
But I could work @ night which I do often anyway
I did measure the night sky brightness and found it had decreased compared to before lockdown (1/12)
so in March 2017 it was less bright than in 2020 (see figure for zenith brightness)
this is surprising because we would expect light emission and #lightpollution to increase like shown in the paper we co-authored with @skyglowberlin and others
advances.sciencemag.org/content/3/11/e…
(2/12)
this is surprising because we would expect light emission and #lightpollution to increase like shown in the paper we co-authored with @skyglowberlin and others
advances.sciencemag.org/content/3/11/e…
(2/12)
using night-time light satellite time series data (VIIRS DNB) we saw an increase in most major towns along the route we measured
you can check such data with @skyglowberlin tool:
lighttrends.lightpollutionmap.info
this was what we eexpected (3/12)
you can check such data with @skyglowberlin tool:
lighttrends.lightpollutionmap.info
this was what we eexpected (3/12)
Daily Bookmarks to GAVNet 03/24/2021 greeneracresvaluenetwork.wordpress.com/2021/03/24/dai…
The COVID-19 response illustrates that traditional academic reward structures and metrics do not reflect crucial contributions to modern science
journals.plos.org/plosbiology/ar…
#rewards #metrics #ScientificContributions
journals.plos.org/plosbiology/ar…
#rewards #metrics #ScientificContributions
The Years of Work Behind Washington’s Best-Liked Man
nytimes.com/2021/03/23/opi…
#TheFed #leadership #biography #OpEd
nytimes.com/2021/03/23/opi…
#TheFed #leadership #biography #OpEd
#InPlainSight!
#APlenaVista! [Español en el 🧵]
Interactive #LightPollution Map (lightpollutionmap.info) allows us to track the amount of light every year captured by satellites.
Maps are created using average monthly light emissions.
2 shocking finds in #Ecuador
1/ [Eng]
#APlenaVista! [Español en el 🧵]
Interactive #LightPollution Map (lightpollutionmap.info) allows us to track the amount of light every year captured by satellites.
Maps are created using average monthly light emissions.
2 shocking finds in #Ecuador
1/ [Eng]
#OverFishing is a highly debated topic.
What happens in #OpenWaters is difficult to monitor.
Yet, here you clearly see the #LightPollution (likely many⛴️) JUST outside the #TerritorialWaters of #Ecuador and #Peru in 2019
Just a reminder: THESE ARE MONTHLY AVERAGES!
2/ [Eng]
What happens in #OpenWaters is difficult to monitor.
Yet, here you clearly see the #LightPollution (likely many⛴️) JUST outside the #TerritorialWaters of #Ecuador and #Peru in 2019
Just a reminder: THESE ARE MONTHLY AVERAGES!
2/ [Eng]
New paper about COVID-19 effects in #lightpollution
mdpi.com/2072-4292/13/2… Leaded by Maximo Bustamante @iaa_csic with the participation of @cefalopodo @KevinJGaston @jvm22811194 @AliciaPelegrina @jon_bennie and myself. Theard:👇
mdpi.com/2072-4292/13/2… Leaded by Maximo Bustamante @iaa_csic with the participation of @cefalopodo @KevinJGaston @jvm22811194 @AliciaPelegrina @jon_bennie and myself. Theard:👇
This is the first article produced with the SQM with filters of the Sky Quality Office of the @iaa_csic iaa.csic.es/page/starlight
The most important things are:
* Light pollution can be used to trace economic activity drop because of COVID-19
* Several limitations on current satellite, mainly because of their flyby time and lack of spectral sensitivity.
*That can be solved with ground sky brighntess sensors
* Light pollution can be used to trace economic activity drop because of COVID-19
* Several limitations on current satellite, mainly because of their flyby time and lack of spectral sensitivity.
*That can be solved with ground sky brighntess sensors
We’ve just published the coolest experiment I’ve done in years: doi.org/10.1177/147715…
Want to know why the brightness of this city is different in these two satellite images? Read the thread 👇🏾
Want to know why the brightness of this city is different in these two satellite images? Read the thread 👇🏾
First some background: I study artificial light in the outdoor environment. I'm interested in where it comes from, where it goes, what impact it has, and what we can do about #LightPollution.
The night face of Earth is radically different from when life evolved. In proportional terms, it's one of the most dramatic physical changes humans have made to the environment.
