Jonas Parnow

The Wikipedia community has built a tool that makes it possible to embed our interactive Our World in Data charts right in any Wikipedia page. I have always admired Wikipedia and all the people contributing to it. And I'm very happy that our work now can get used this way!

feels like it’s inevitable these days that every tool you rely on is one garbage founder or funder away from their app’s version of this post

What a super interesting idea, @fil.rezo.net! Also a great notebook for understanding the technique. Thanks for the repost, @moritzstefaner.bsky.social!

We've shipped more than a thousand versions of Zed, but all of them began with zero. Today, that changes. zed.dev/blog/zed-1-0

A reminder of where we stand. Source: ed-hawkins.github.io/climate-visu...

When D3 was released in February 2011, it transformed how we build data visualizations for the web and ushered in a new age of unbridled creativity in information design, data journalism, and beyond. Today, it remains the backbone of modern, interactive data viz. Happy 15th birthday, D3 🎂 d3js.org

There’s a South Korean middle school science teacher that’s been making free interactive science simulations on the web since 1996 He has hundreds of simulations now and gets millions of views per year. He was also named "Science Teacher of the Year" by the Korean government

Built a “3D” sphere (SVG) to show RYB transformations. Over-iterated in @codepen.io 10% optimization, 90% procrastination. codepen.io/meodai/full/...

New in Svelte: Comments inside component/element tags!

I made a filterlist for uBlock Origin to remove Generative AI features on websites. Includes blocks for * Google AI Summaries * YouTube Ask button & chat summaries * GitHub Copilot * Facebook AI chat * X's Grok buttons * Deviantart DreamUp * Booru AI images * And more github.com/Stevoisiak/S...

📣 NEW! I’ve just released the BIGGEST and perhaps most creative project I’ve ever worked on! “Searching for Birds” searchingforbirds.visualcinnamon.com 🐤 A project, an article, an exploration that dives into the data that connects humans with birds, by looking at how we search for birds.

The optimist vs pessimist divide in #climate debates isn’t usually about the data. It’s about how the same graphs are read, what people emphasise, what they discount, and how they interpret pace and stakes. Here’s what I mean 🧵👇

Join us in Bologna, Italy, 4–6 Nov 2026 for Visualising Climate — the first global conference fully dedicated to climate data visualization and its power to transform public understanding of a changing planet. Come see the data. visualisingclimate.org #VisualisingClimate2026 #DataVis #ClimateCrisis

In collaboration with Nature, I investigated the impact of the Trump administration on US science one year after its return to office. More than 7800 research grants were cancelled or frozen, affecting ~25000 scientists and research staff and resulting in an ~US$32 billion in lost research funding.

Wonderful to have a Svelte meetup in Berlin! Thanks to @fubits.dev and @peterkogo.bsky.social for organising it, and to @dominikg.dev for coming over. Thanks also to all three of you for presenting! It was a great start, and hopefully there will be many more to come!

The risk of an #AMOC shutdown - explained in 15 minutes at the Arctic Circle in Reykjavik on Saturday. I had the honor of presenting a letter by 44 experts warning of that underestimated risk to the Icelandic 🇮🇸 climate minister Guðlaugur Þór Þórðarson. youtu.be/k0FUZKQhU6U?...

read our report which uses satellite imagery to map environmental catastrophe in gaza with @denisedslu.bsky.social 🎁: www.bloomberg.com/graphics/202...

Data visualizations are some of the most powerful tools in a climate science communicator’s playbook. However, designing visuals that are clear to the public and policy makers is not a straightforward task, writes @rachitdubey.bsky.social . So, what works?

People tell me nobody wants to look at climate curves anymore, yet here we are!!! Please enjoy our interactive journey through 485 million years of climate history and dive into the fascinating and important work of paleoclimate scientists. 🎁 www.zeit.de/wissen/umwel...

Last week I had the pleasure of finally releasing the #SveltePlot alpha version during my talk at the #SvelteSummit in Barcelona. It's a new visualization framework for @svelte.dev that I've been working on for the past 18 months, so it's about time for a 🧵

stoked for svelteplot.dev, launched on stage just now at #sveltesummit by @driven-by-data.net

On the anniversary of the sinking of the Titanic, we thought we'd answer a question that's often asked, "If they raised the Mary Rose, why not raise the Titanic?" Allow our scaled diagram to explain...

I'm very pleased to share Tunnel & Fortress, a new live coached training series bringing the art of system administration to those with no prior experience in the field. Participants will deploy, garden & harden servers to keep their communities safe. video.nikau.io/w/sXj2kQ8vQo... #exitbigtech

I’m thrilled to bring together two institutions that shaped my work: BarabásiLab & metaLAB (at) Harvard. On June 11–12, 2025, we’re hosting Data | Art—a conference on how data entangles with artistic, scientific & curatorial practices. We have a stellar lineup of speakers! More soon: data-art.info

Join us online on Thu 20 March 18:00–19:00 CET: *Visualising climate science* by Angela Morelli Visualisation is a powerful tool for navigating the complexity of climate change. However, visualising climate science can confuse, misinform or polarise. Register at: www.eventbrite.at/e/iiid-conve...

For the German election we wanted to use a cartogram of German election districts but didn't find anything good, so we created our own. Here's a little nerd thread how the final algorithm worked 🤓 🧵 #gis #cartogram #election #datavis #cartography

I am very excited to announce Unpic 1.0 🎉 As easy as an <img> tag but generates all the right attributes and styles for a responsive image. No downloading and no build-time resize • Components for ten frontend frameworks • Support for 26 image providers, now with type-safe transforms for every one

this is so good. this is so so so good. i'm running around my office screaming the lev manovich quote about how software is ideology

Lovely example of how weird real-world data is. I put all 55 million points in Overture maps into a Nomic Atlas map. Lots of points spuriously appearing in the ocean. But the 1° square around 'null island' (0° lat, 0° long) is suspiciously clear -- someone has cleared out bad data just there.

For the 4th year in a row, my all-sky camera has been taking an image of the sky above the Netherlands every 15 seconds. Combining these images reveal the length of the night changing throughout the year, the passage of clouds and the motion of the Moon and the Sun through the sky. #astrophotography

Anne Telnaes, Pulitzer-winning editorial cartoonist for the Washington Post, has resigned. The paper censored a cartoon that criticized billionaires. Democracy dies in broad daylight, too. anntelnaes.substack.com/p/why-im-qui...

Do you want the GOOD news or the BAD news? 2024 in charts, by Just Have a Think #climatechange #climate www.youtube.com/watch?v=VG-x...

Wenn ihr mit einer hoffnungsfrohen Karte aus dem Jahr gehen wollt: 2.500 neue Windräder haben 2024 eine Baugenehmigung bekommen, laut unserer Zählung @zeit.de. Die meisten davon gehen in den nächsten Jahren ans Netz und liefern grünen Strom. Die Energiewende geht voran! zeit.de/energiemonitor

2024 geht zuende - das heißeste Jahr weltweit & in Deutschland. Die Folge: krasse, teure Wetterextreme. Schaut den Jahresrückblick. Wir dürfen die #Klimakrise nicht weiter als Nebensache behandeln! Dafür würden wir & unsere Kinder & Enkel bitter bezahlen. youtu.be/XEH3NZkTdNI?...

Fascinating exploration of entropy as a measure of ignorance. Researchers are attempting to capitalize on the apparent subjectivity of that ignorance. By @zacksavitsky.bsky.social with terrific interactive graphics by Jonas Parnow and @markabelan.bsky.social: www.quantamagazine.org/what-is-entr...

this year's @bandcamp.com wrapped! (this is not an official thing but i hacked together something to make it work and wrote it on val.town) macwright.com/2024/12/06/b...

New blog post out (first one in over a year 🥵): I tested how well different election dashboards implemented common dataviz accessibility principles, and explained where things went wrong, including lots of demos. fossheim.io/writing/post...

🎅🎄🎁 ADVENT OF SVELTE 🎅🎄🎁 We're going to ship one thing a day every day from now until Christmas. Wish us luck! svelte.dev/blog/advent-... First up...

There’s more to rainbows than the human eye can see: here’s how a rainbow extends into the infrared and ultraviolet. Photos: 1. Infrared 2. Visible (obviously) 3. Ultraviolet, and 4. A composite showing how UV is beyond the violet in a rainbow, and IR beyond the red end. 🧪 #photography

HOW TO GET STARTED ON DATAVIZ BLUESKY 📊 IN 9 STEPS If you're arriving here, you may wonder where is the dataviz community and how to partake in it. Here's a thread on how I suggest going about it. 🧵👇

It’s freezing cold. Global warming is solved!