Discover and read the best of Twitter Threads about #lightpollution

Most recents (8)

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
#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%.… 2/
Hedgehogs avoid lighting, restricting their movement. #LightPollution causes many problems for bats, disrupting their roost, feeding and navigation. 3/
Read 9 tweets
Daily Bookmarks to GAVNet 04/29/2021…
What life conditions drove you to work for societal and cultural transformation?…

#transformation #society #culture #biography #LifeConditions
Large-scale origami locks into place under pressure…

#LargeScale #OrigamiDesign #FacilityStructures
Read 10 tweets
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)
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…

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:

this was what we eexpected (3/12)
Read 13 tweets
Daily Bookmarks to GAVNet 03/24/2021…
The COVID-19 response illustrates that traditional academic reward structures and metrics do not reflect crucial contributions to modern science…

#rewards #metrics #ScientificContributions
The Years of Work Behind Washington’s Best-Liked Man…

#TheFed #leadership #biography #OpEd
Read 10 tweets
#APlenaVista! [Español en el 🧵]

Interactive #LightPollution Map ( 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] World map showing the light...
#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


2/ [Eng] Picture showing the light p...
Here is a compilation GIF from 2012 through June 2020


3/ [Eng]
Read 12 tweets
New paper about COVID-19 effects in #lightpollution… Leaded by Maximo Bustamante @iaa_csic with the participation of @cefalopodo @KevinJGaston @jvm22811194 @AliciaPelegrina @jon_bennie and myself. Theard:👇 Image
This is the first article produced with the SQM with filters of the Sky Quality Office of the @iaa_csic
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
Read 20 tweets
We’ve just published the coolest experiment I’ve done in years:…

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. Image
Read 46 tweets

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