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Kirsten von Elverfeldt

@elverfeldt.bsky.social
103 followers 146 following 82 posts

Passionate about science and climate action

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Reposted by Kirsten von Elverfeldt
HeiGIT @heigit.org · 17/09/2026
With shadow data, we are building tools for climate-resilient urban planning. Free shade data for 136 cities in 44 European countries, plus two tools that use it. hiShade shows where shade is missing in a walkable network. Our routing tool finds walking routes. buff.ly/Un08NG6
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 15/09/2026
Check this out - this has been (and still is) an especially insightful cooperation, and I think hiWalk benefited a lot from it. As always, I am more than curious about your feedback and potential use cases for the tool.
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 11/08/2026
So, so happy to see this live! (And a bit sad how much data like this is currently needed, and how trees are struggling to survive this heat and drought).
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 03/08/2026
hiWalk turns your gut feeling about which streets are nice to walk into data, e.g. tree shade, surface quality, greenness. Free tool, launched a year ago. Try it out - and I'd love to hear what you find! 👇
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 03/07/2026
Working here just feels right! I get to be part of a team that's just as dedicated and high-aiming as it is fun to work with. From humanitarian aid to climate action... this is what open-source geoinformation for good looks like. Happy Birthday, @heigit.org !
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 03/06/2026
Happy Birthday CAN! It has been a fun year with you, with many learnings, amazing new partners and a fantastic team.
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Reposted by Kirsten von Elverfeldt
HeiGIT @heigit.org · 22/04/2026
🗺️𝗠𝗮𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗠𝗼𝗻𝘁𝗵 – 𝗦𝗹𝗼𝗽𝗲 𝗼𝗳 𝗕𝗶𝗸𝗲𝗮𝗯𝗹𝗲 𝗣𝗮𝘁𝗵𝘀 𝗶𝗻 𝗭𝘂𝗿𝗶𝗰𝗵, 𝗦𝘄𝗶𝘁𝘇𝗲𝗿𝗹𝗮𝗻𝗱 Urban cycling depends also on the terrain. This map shows the slope of bike paths in Zurich, showing where action might be needed to make urban mobility more inclusive and accessible. More bikeability data: climate-action.heigit.org
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Reposted by Kirsten von Elverfeldt
HeiGIT @heigit.org · 01/04/2026
Our team has been working in a collaborative sprint format to explore new features for the Climate Action Navigator. Some of the indicators we worked on in our latest development sprint: 🚗daily road traffic volume 💧wastewater treatment emissions 🚵slope-based mobility Blog: heigit.org/behind-the-s...
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Reposted by Kirsten von Elverfeldt
HeiGIT @heigit.org · 25/02/2026
🗺️ 𝗠𝗮𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗠𝗼𝗻𝘁𝗵: 𝗣𝗿𝗶𝗼𝗿𝗶𝘁𝘆 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝘁𝗶𝗲𝘀 𝗳𝗼𝗿 𝗥𝗲𝘀𝗶𝗱𝗲𝗻𝘁𝗶𝗮𝗹 𝗛𝗲𝗮𝘁𝗶𝗻𝗴 𝗗𝗲𝗰𝗮𝗿𝗯𝗼𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝗚𝗲𝗿𝗺𝗮𝗻𝘆 💡 The Heating Emissions tool in HeiGIT's climate action navigator estimates CO2 emissions from residential heating. 🔗 Tool: buff.ly/Oc4zTJN 🔍 More Info: buff.ly/h0mk1F4
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 23/01/2026
Ich bin ein absolutes Greenhorn, was Crowdfunding angeht. Nun mache ich es zum ersten Mal, um einer verstorbenen Freundin und vor allem deren Tochter einen Dienst zu erweisen und zu helfen. Habt ihr Tipps und Ratschläge, was/wie/wo ich noch tun kann? gofund.me/4bb3eb3d4
gofund.me
Würdevolle Bestattung für Steffi & Hilfe für ihre Tochter, organized by Kirsten von Elverfeldt
Steffi ist Anfang Januar mit nur 50 Jahren an den Folgen eine… Kirsten von Elverfeldt braucht deine Unterstützung für Würdevolle Bestattung für Steffi & Hilfe für ihre Tochter
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 15/12/2025
If you have some Euros left, please consider donating for the "Wünschewagen": They fullfill the last wish of people who are dying. A friend of mine is hoping that her wish is granted: to be transported to a hospice so that she can be close to her daughter during her last weeks. www.wuenschewagen.de
wuenschewagen.de
Der Wünschewagen – Letzte Wünsche wagen
Schwerstkranken Menschen in ihrer letzten Lebensphase einen besonderen Wunsch zu erfüllen – das ist die Aufgabe der ASB-Wünschewagen. Seit 2014 bringen engagierte Samariterinnen und Samariter mithilfe...
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Reposted by Kirsten von Elverfeldt
Der Postillon 📯 @der-postillon.com · 20/11/2025
Unbekannte hacken Deutsche Bahn und lassen alle Züge pünktlich fahren www.der-postillon.com/2019/11/deut...
der-postillon.com
Unbekannte hacken Deutsche Bahn und lassen alle Züge pünktlich fahren
Schwere Panne bei der Deutschen Bahn: Unbekannte Hacker haben heute Vormittag Zugriff auf das Computersystem des Unternehmens erlangt und den Betrieb völlig durcheinander gebracht, indem sie mit…
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Reposted by Kirsten von Elverfeldt
The New Yorker @newyorker.com · 06/11/2025
One analytical model shows that, as of November 5th, the dismantling of U.S.A.I.D. has already caused the deaths of 600,000 people, two-thirds of them children. newyorkermag.visitlink.me/jUzNSc
newyorkermag.visitlink.me
The Shutdown of U.S.A.I.D. Has Already Killed Hundreds of Thousands
The short documentary “Rovina’s Choice” tells the story of what goes when aid goes.
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 19/10/2025
Exactly. More of the same if the same wasn‘t a cure so far won’t improve anything.
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HeiGIT @heigit.org · 08/10/2025
You live in #Karlsruhe and like to walk or cycle around?🚶🚴 Join us at the 𝗞𝗜𝗧 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 𝗪𝗲𝗲𝗸 next Sunday: We will take to the street by bike or on foot and collect insights on how public spaces can become more livable and bike-friendly. 📅Info & registration: heigit.org/events/kit-s... @kit.edu
Text:
Workshop
Karlsruhe neu erleben: Straßen checken, Mobilität gestalten!
Tulla-Halle (11.40), KIT Campus Süd
19.10.2025, 13 Uhr

Bild: Zwei Personen zu Fuß und eine Person auf dem Fahrrad malen mit Stiften auf Papierkarten der Stadt
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John Cusack @johncusack.bsky.social · 02/10/2025
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CNN @cnn.com · 03/10/2025
An ongoing eruption at Hawaii's Kilauea volcano unleashed spectacular lava fountains that towered an astonishing 1,300 feet into the air — as high as New York's Empire State Building.
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 02/10/2025
Ever tried walking your city and thought: ‘Where can I even sit down?’ @heigit.org's #hiWalk just added a feature that maps benches + another one for water fountains. Good for the elderly, good for everyone. Because #walkable cities = #livable cities
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Kyle Horton @kyle-horton.bsky.social · 25/09/2025
Truly impressive number of birds migrating tonight. More than 800 MILLION birds up in the air right now❗ #BirdMigration
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HeiGIT @heigit.org · 22/09/2025
#WorldCarFreeDay is a reminder to reimagine #mobility The hiBike assessment tool (in the Climate Action Navigator) measures urban #cycling infrastructure & helps cities target improvements. 👉https://climate-action.heigit.org/ 🎵 Pixabay, AlexGrohl #sustainablemobility #climateaction
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 24/09/2025
Special thanks goes out to @radlobby.at - for working with us, but especially for lobbying for bikeable cities. Wanna improve #OpenStreetMap #OSM? At climate-action.heigit.org/webapp/dashb... you can see the difference great OSM data availability can make. Cudos to @inesmuc.bsky.social for mapping!
climate-action.heigit.org
Climate Action Navigator - Urban Climate Assessment Tools
Explore local climate solutions with high-resolution data on emissions, bikeability, walkability, and more to improve your city or region.
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Alexander Roth @00schneemann.bsky.social · 18/09/2025
Geht's noch? Die Pressefreiheit ist an allen Ecken und Enden in Gefahr. Kolleg*innen werden massiv beleidigt, eingeschüchtert und körperlich angegriffen. Ihnen wird Folter, Vergewaltigung und Mord angedroht. Demos sind seit Jahren Gefahrenzonen. (1/5)
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Tagesschau Bot @tagesschau.bsky.social · 28/08/2025
Eiertanz um Fleischfakten #Klimapolitik #Fleisch
tagesschau.de
Eiertanz um Fleischfakten
Scheuen Landwirtschaftsminister Rainer und Klimaschutzminister Schneider beim Thema Fleisch die Fakten?
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Reposted by Kirsten von Elverfeldt
The Guardian @theguardian.com · 25/08/2025
‘I would not feel safe’: Americans on the sorrow – and relief – of leaving Trump’s US for Europe
theguardian.com
‘I would not feel safe’: Americans on the sorrow – and relief – of leaving Trump’s US for Europe
As relocation firms report a surge in inquiries, US citizens who have made the move talk about why they left – and what they think could happen back home
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Frau Büüsker @uedio.bsky.social · 25/08/2025
Die SZ berichtet heute über einen klimapolitischen Wahnsinnsmove der Bundesregierung. Sie will möglich machen, europäische Strafzahlungen wegen zu wenig Klimaschutz aus dem Topf zu bezahlen, der Klimaschutz finanzieren soll. Wodurch weniger Geld für Klimaschutz da wäre.
sueddeutsche.de
Klimaschutz: Wie die Regierung den KTF zweckentfremdet
Deutschland droht die Klimaziele zu verfehlen. Doch statt mehr Klimaschutz zu machen, will sie aus dem gleichen Topf CO₂-Zertifikate kaufen.
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Tagesschau Bot @tagesschau.bsky.social · 01/08/2025
Klimawandel erlebbar machen #Klimawandel #App #Smartphone
tagesschau.de
Klimawandel erlebbar machen
Wie viel kühler wäre die Innenstadt, wenn mehr Bäume gepflanzt würden? Eine App soll Antworten liefern.
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Alt National Park Service @altnps.bsky.social · 26/07/2025
Darren Beattie, fired from the Trump White House in 2018 after it was revealed he attended a white supremacist conference, has just been appointed acting president of the U.S. Institute of Peace, according to the State Department.
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HeiGIT @heigit.org · 24/07/2025
𝗟𝗨𝗟𝗖 𝗖𝗵𝗮𝗻𝗴𝗲: 𝗵𝗼𝘄 𝘁𝗼 𝗰𝗮𝗹𝗰𝘂𝗹𝗮𝘁𝗲 𝗰𝗮𝗿𝗯𝗼𝗻 𝗲𝗺𝗶𝘀𝘀𝗶𝗼𝗻𝘀 𝗳𝗿𝗼𝗺 𝗹𝗮𝗻𝗱 𝘂𝘀𝗲 𝗮𝗻𝗱 𝗹𝗮𝗻𝗱 𝗰𝗼𝘃𝗲𝗿 𝗰𝗵𝗮𝗻𝗴𝗲 The 𝘊𝘭𝘪𝘮𝘢𝘵𝘦 𝘈𝘤𝘵𝘪𝘰𝘯 𝘕𝘢𝘷𝘪𝘨𝘢𝘵𝘰𝘳 shows high-resolution estimates of emissions caused by LULC change, helping to plan locally targeted climate mitigation measures: heigit.org/unveiling-th... #EarthOvershootDay
Unveiling the HeiGIT Climate Action Navigator - Land Use and Land Cover Change Emissions. Screenshot of LULC Change Tool in CAN - This example shows Grünheide, Germany
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The New York Times @nytimes.com · 14/07/2025
In an effort to shrink the federal government, President Trump and congressional Republicans have taken steps that are diluting the country’s ability to anticipate, prepare for and respond to catastrophic flooding and other extreme weather events, disaster experts say.
trib.al
Trump Is Gutting Weather Science and Reducing Disaster Response
As a warming planet delivers more extreme weather, experts warn that the Trump administration is dismantling the government’s disaster capabilities.
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Labrys of Aëlla @aellalabrys.bsky.social · 13/07/2025
"Wenn die Lösung für illegale Arbeit darin besteht, reiche Landwirte zu Pförtnern zu machen, die entscheiden, wer abgeschoben wird oder nicht ... dann haben Sie die Sklaverei nicht abgeschafft. Sie haben sie privatisiert." www.agrarheute.com/politik/ernt...
agrarheute.com
Ernte verrottet auf dem Feld: Trump plant Sklaverei 2.0 für Landwirte
Arbeit in der US-Landwirtschaft ist nicht ungefährlich: Erntehelfern droht Abschiebung. Trump hat Pläne, den Landwirte zu helfen.
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Michael E. Mann @michaelemann.bsky.social · 01/07/2025
I discussed the climate change-fueled record heat in Europe earlier today on #BBCNews Television: www.youtube.com/watch?v=fJtU...
youtube.com
Michael Mann on BBC New Television Discussing The Climate Change-Fueled Record Heat in Europe
YouTube video by Michael Mann
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Nature Portfolio @natureportfolio.nature.com · 30/06/2025
An analysis in Communications Earth & Environment shows that new forests larger than the land area of North America would need to be planted to offset the potential carbon dioxide emissions from the fossil fuel reserves currently held by the world’s 200 largest fossil fuels companies. 🧪
go.nature.com
Carbon offsetting of fossil fuel emissions through afforestation is limited by financial viability and spatial requirements - Communications Earth & Environment
The spatial requirements for offsetting current fossil fuel reserves would require converting to forest a land area equivalent to the entirety of North and Central America, according to an analysis of the social cost and economic value of carbon.
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Zack Labe @zacklabe.com · 25/06/2025
Awful. More horrible science news "The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) learned yesterday that the Department of Defense (DoD) will stop processing & delivering the Special Sensor Microwave Imager/Sounder (SSMIS) data no later than 30 June 2025."
Screenshot from NSIDC that says: "Dear Colleague:

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) learned yesterday that the Department of Defense (DoD) will stop processing and delivering the Special Sensor Microwave Imager/Sounder (SSMIS) data no later than 30 June 2025. The SSMIS data are used as input for the following NSIDC DAAC-produced data sets, which will therefore stop processing no later than 30 June 2025:"
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The Guardian @theguardian.com · 21/06/2025
Current heatwave ‘likely to kill almost 600 people in England and Wales’
theguardian.com
Current heatwave ‘likely to kill almost 600 people in England and Wales’
Surge in deaths would not be occurring without human-caused global heating, scientists say as analysis published Almost 600 people are expected to die early in the heatwave roasting England and Wales, a rapid analysis has found. The surge in deaths would not be occurring without human-caused global heating, the scientists said, with temperatures boosted by 2C-4C by the pollution from fossil fuels. Continue reading...
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Joseph D. Ortiz @earthsciinfo.bsky.social · 21/06/2025
Ireland joins the growing number of nations that are now coal free for electricity generation. 💪 🧪🔌💡☀️💨🔋 electrek.co/2025/06/20/i...
electrek.co
Ireland just became Europe’s newest coal-free country
Ireland just shut down its last coal plant – part of a clean energy shift that’s making Europe coal-free, one country at a time.
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 11/06/2025
Big thanks to everyone who joined the CAN launch event last week! We had great discussions on how the Climate Action Navigator offers actionable data. 🔍 First look at the tool 💬 Loads of good questions 🤝 New collaboration ideas 📖 FAQ coming soon Check it out: climate-action.heigit.org @heigit.org
climate-action.heigit.org
Climate Action
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Der Postillon 📯 @der-postillon.com · 06/06/2025
US-Behörden finden überraschend Gang-Tattoo bei Elon Musk www.der-postillon.com/2025/06/musk...
der-postillon.com
US-Behörden finden überraschend Gang-Tattoo bei Elon Musk
Deutschlands größte Tageszeitung der Welt
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Arash Ghoddousi @arashghoddousi.bsky.social · 05/12/2024
Published in Conservation Biology! Effectiveness of protected areas in the #Caucasus Mountains in preventing #rangeland #degradation Using greenness indicators in 52 PAs from 1988-2019 we showed that they’re ineffective in preventing degradation OA: conbio.onlinelibrary.wiley.com/doi/10.1111/...
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Benedikt Narodoslawsky @dernaro.bsky.social · 05/06/2025
Ein Gespräch mit Werner Bätzing zum #Weltumwelttag: Der Kulturgeograf und Autor von "Homo destructor" über den Beginn der weltweiten Umweltzerstörung, die Schattenseiten unseres materiellen Reichtums und die Gefahr des Freihandels. www.derstandard.at/story/300000...
derstandard.at
Geograf Werner Bätzing: "Die Existenz des Menschen ist gefährdet"
Der Autor von "Homo destructor" über den Beginn der weltweiten Umweltzerstörung, die Schattenseiten unseres materiellen Reichtums und die Gefahr des Freihandels
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CNN @cnn.com · 06/06/2025
A judge has halted a proclamation to suspend new international student visas at Harvard hours after the university filed an amended lawsuit.
cnn.com
Judge halts Trump’s proclamation to suspend new international student visas at Harvard hours after university files amended lawsuit | CNN
A federal judge has halted President Donald Trump’s latest attempt to block international students from coming to Harvard University.
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 04/06/2025
We‘ve reached ~130 registrations (you guys are so amazing!), but if you are not one of them yet, you can still register till tomorrow (5.6.), 11am CEST. #ClimateAction #WorldEnvironmentDay
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Dan McCrum @mccrum.bsky.social · 04/06/2025
“I've been thinking more and more about how much time I am almost certainly spending grading and writing feedback for papers that were not even written by the student,” one teacher said. “That sure feels like bullshit.”
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Informationsdienst Wissenschaft - idw @idw-online.de · 04/06/2025
Forest fires could have a greater impact on clouds and climate than previously assumed > www.tropos.de/en/current-issues/pre…... weiterlesen
At the beginning of June 2025, smoke from Canadian forest fires was again observed in the atmosphere over Leipzig. The image shows a measurement from the night of 2/3 June 2025. - Copyright Benedikt Gast, TROPOS
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Dr. Sharan Banagiri (he/him) @geodesicvoyager.bsky.social · 04/06/2025
Terrifying stuff. Sharp decline in insect numbers tied to global heating. They are at the base of ecosystems and their decline will reverberate upwards. The fact that this is probably going to happen in my life time. We really need to stop burning fossil fuels today!
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Kirsten von Elverfeldt @elverfeldt.bsky.social · 02/06/2025
Eine tolle Kooperation, die viel Spaß macht, bei der ich schon sehr viel gelernt habe - und die in einem nützlichen Produkt resultiert. Der Climate Action Navigator ist bereits online, mehr Infos gibts bei @heigit.org oder heigit.org/climate-acti...
heigit.org
Climate Action – HeiGIT
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Tagesschau Bot @tagesschau.bsky.social · 31/05/2025
Landwirtschaft - auch mit sehr wenig Wasser #Landwirtschaft #Wassermangel #Tradition
tagesschau.de
Landwirtschaft - auch mit sehr wenig Wasser
Ein Landwirt auf Sifnos baut alte, heimische Pflanzenarten an, die mit wenig Wasser auskommen.
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The Washington Post @washingtonpost.com · 29/05/2025
Irreversible tipping points in the climate system — like the melting of Arctic ice sheets or the wide-scale collapse of coral reefs — are closer than scientists previously believed.
washingtonpost.com
Earth is likely to cross a key climate threshold in two years
A new World Meteorological Organization report spells the end of the world’s most famous climate goal.
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Holger Nohr @holgernohr.bsky.social · 29/05/2025
Nach dem Gletscherabbruch in Blatten droht nun die Lonza überzulaufen und die Orte Steg und Gampel zu gefährden. Die Einwohner müssen sich auf Evakuierung vorbereiten. www.srf.ch/news/schweiz...
srf.ch
Gletscherabbruch Blatten - Lonza könnte in der Nacht überlaufen und zu Murgängen führen
Die Behörden haben an einer Medienkonferenz informiert. Die Situation bleibt angespannt.
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Tagesschau Bot @tagesschau.bsky.social · 28/05/2025
Irgendwas Hartes verkünden - egal wie unsinnig es ist #Kommentar #Dobrindt #Migration
tagesschau.de
Irgendwas Hartes verkünden - egal wie unsinnig es ist
Das, was Innenminister Dobrindt zur Migrationspolitik verkündet hat, ist reine Symbolpolitik, meint Bianca Schwarz.
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Tagesschau Bot @tagesschau.bsky.social · 28/05/2025
Bröckelnder Berg löst Gletschersturz aus #Bergsturz #Gletscher
tagesschau.de
Bröckelnder Berg löst Gletschersturz aus
Im Schweizer Kanton Wallis haben Geröllmassen zum Absturz von großen Teilen des Birchgletschers geführt.
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