Ken Walczak (@KWalzar) header
Ken Walczak (@KWalzar) profile picture

Advocate, inspirer and doer @adlerplanet. Always searching for new ways of engaging students, scientists and the public in science and #lightpollution research

Chicago, IL
Joined June 2013
Photo by Ken Walczak (@KWalzar)Photo by Ken Walczak (@KWalzar)Photo by Ken Walczak (@KWalzar)Photo by Ken Walczak (@KWalzar)Photo by Ken Walczak (@KWalzar)Photo by Ken Walczak (@KWalzar)Photo by Ken Walczak (@KWalzar)Photo by Ken Walczak (@KWalzar)Photo by Ken Walczak (@KWalzar)Photo by Ken Walczak (@KWalzar)
For anyone still on whatever this platform is now, our paper on land use and light emission as observed from a high altitude balloon mission is now available! You can access it here: authors.elsevier.com/a/1hWiD…
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How?! How is this not illegal? This car was a block away and this is the light it cast in our house. And I live on the 2nd floor! @StBrianAerial
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Ken Walczak retweeted
Good evening @chicago! This is spectacular you (*) at 7:22pm tonight when the @Space_Station passed you by 260 miles above. @NWSChicago @ABC7Chicago @WGNNews @nbcchicago @FOX40 Jan 30, 2023 (*) A few more cities too
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Amazing talk with stunning visuals at today’s #AGU22 plenary by @BabakTafreshi Let’s hope it inspired more researchers to consider #ALAN as an environmental issue.
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Also, @MayorFrey: your statement that "criminals fear a well-lit street" is unfounded in fact. I can show you plenty of studies to the contrary. If you're interested in learning what street lighting actually *can* do for communities, have someone on your staff contact me.
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Can you spot the difference? 🧐 These images were taken by European astronauts from the International @Space_Station 10 years apart, 400 km above #Earth. They are the best source for scientists to map #LightPollution. 📸 @nasa/@esa – @astro_andre + @AstroSamantha/@cities4tnight
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The rare time Chicago streetlights aren’t a significant contributor to light pollution 🙄
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My appearance on the @RestoringDrknss podcast just dropped. What can we learn from observing LP from the stratosphere? How can we get the lighting industry on board? (A nod to @skyglowberlin for inspiring many aspects of our work @AdlerPlanet) restoringdarkness.com/episod…
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6.5 million birds crossed Cook County last night. This morning, CBCM rescued & recovered nearly 300 birds, including this unfortunate vireo. This tragedy is preventable. Chicago must take action now to change. It starts with all of us. It ends with the life of an innocent bird.
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It's (officially) paper day! This review was ~2 years in the making. It was posted to astro-ph a few weeks ago, but the properly typeset version is up. Thanks to @salvabara, @KWalzar et al. who gave constructive feedback on early versions. nature.com/articles/s41550-0…
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Demographics of the world's light pollution on our new article!! Who is producing the light pollution? by @DanielTCCox @pmisson @jon_bennie, Simon Dzurjak, and @KevinJGaston from @UniofExeterESI Thread!!!👇sciencedirect.com/science/ar…
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I’m afraid LEDs have made many people forget what daylight is for.
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Oh the irony! Our Indy light pollution mapping flight went great last night. Got stuck in a tree. Now searching out a tree climber. What’s the view from outside my hotel window last night?
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Just updated our beta test light pollution map. Now 2021 data is included. Based on: nature.com/articles/s41598-0… FYI @KnightforNight1
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New on my business website: a Resources page with lots of information/docs/links for various aspects of dark sky education & advocacy, lighting knowledge, outdoor lighting policy, and more. darkskyconsulting.com/resour…
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BIG news out of the U.S. Supreme Court today on regulation of (often illuminated) signs. In clarifying Reed v. Town of Gilbert (2015), the Court upheld a municipal ban prohibiting businesses from off-location advertising on digital billboards or signs. scotusblog.com/2022/04/in-au…
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