“From climate change to smoking & cancer, this is the story of how doubt has been manufactured. This 10 part series will explore how powerful interests & sharp PR managers engineered doubt about the connection between smoking & cancer & how similar tactics were used to make us doubt climate change.”

“After analyzing crash data over a 13-year period in areas with separated bike lanes on city streets, researchers estimated that having a protected bike facility in a city would result in 44% fewer deaths and 50% fewer serous injuries than an average city.” Safer for ALL. Via @usa.streetsblog.org

I cannot find the words to express my admiration and gratitude for these three friends who founded @urbantruth.bsky.social They are tireless and do an extraordinary job of debunking misinformation and manipulation. Well done to them, and thank you. @brenttoderian.bsky.social 🙏🏻🙏🏻🙏🏻

Awesome new paper by @ashtonindc.bsky.social unpacking ideas about "what—and who—our streets are for" that are behind car supremacy. By analyzing what people say at public meetings, this paper makes the case that individuals are upholding car supremacy and stymieing efforts to build safe streets.

Sunday 5/10 at 10am PT on Climate Chat: New Global Emissions Projections: Scrapping the Highs & Lows with climate scientist Detlef van Vuuren. Also on all audio podcast platforms (recorded) @leonsimons.com @bikingmzstacey.bsky.social @radsci.bsky.social #Climate #CO2 youtube.com/live/MYWokv0...

Breaking News! Code: Preliminary mega-UFB!!! And there we have it, as of May 1st, the preliminary SST for Nino region 3.4 is the highest on record for the day. The two closest years are the El Nino years 1992 and 2015. Will Nino 3.4 see 29.5°C by June 1st? Stay tuned!

Oudezijds Voorburgwal, Amsterdam in 1980 and today

"Travel enjoyment was also lacking: there was hardly any greenery." Travel enjoyment - what a great phrase! The transformation here is amazing - here's some of the route when @rantyhighwayman.bsky.social cycled it with @bicycledutch.bsky.social in 2023. youtu.be/zh-zOe6deHg?...

It doesn’t need to be complicated. Give buses their own space and signals, and keep families on bikes or scooters separate. Safer for them, and buses can keep to schedule.

Cities get better when you trade space for cars, with places for people. #UrbanTruth

@urbantruth.bsky.social and the Fight to Fix Misinformation About Bike Lanes, Traffic, and City Living. momentummag.com/urban-truth-...

About a month and a half ago, we launched the URBAN TRUTH COLLECTIVE and started putting out our content and campaigns. We’ve already passed 7500 followers on Bluesky, and thanks to you, we’ve had thousands of reposts & shares of our ad posters, messages and other content. Thank you. #UrbanTruth

Remember, not density OR trees. Density AND trees. Better cities are climate action. #UrbanTruth

All Climate Chat episodes are now available as audio podcasts on Apple Podcasts (below), Spotify (in thread), etc.! @leonsimons.com @bikingmzstacey.bsky.social @radsci.bsky.social #Climate #Podcast podcasts.apple.com/us/podcast/c...

Sunday 4/19 at 10am PT on Climate Chat: Current Events: Are We Hitting the #AMOC Tipping Point? with AMOC Scientist René van Westen. On YouTube (live & recorded) & all podcast platforms (recorded). @leonsimons.com @bikingmzstacey.bsky.social @radsci.bsky.social youtube.com/live/JMtu9W4...

A Super-duper El Niño lurks below the Equatorial Pacific Ocean surface, with a large section of the ocean showing a temperature anomaly of >5°C. Wait for it:

Rokin, Amsterdam in 1979 and today

Molensteeg, Amsterdam in 1980 and today

The fastest route in the Dutch city of Nijmegen isn’t for cars. It’s a direct bus and cycle corridor from the train station to the university and hospital. Cars go the long way round - designed that way on purpose.

PREMIERE REMINDER: Pls tune in tmw, Fri, Mar 27th, 3 pm Eastern, for an in-depth conversation with Ross Chapin about how the Pocket Neighborhood concept can help deliver more housing in close proximity to meaningful destinations while enhancing sociability and neighborliness. youtu.be/2ZYMg7BFE-Y

Even without El Niño, Global Sea Surface Temperatures are already hitting daily record highs. We're now entering a climate hotter than has existed for hundreds of thousands of years!

Some want you to reject the evidence in front of your eyes and believe that this trendline is straight. Why are they lying to you? Global warming has accelerated and denial will get a lot of people killed.

I love what this channel is doing. Car culture convinces us we can't survive outside the moment it gets cold, but this video completely demystifies winter riding. Even if it just encourages someone to pull their bike out in fair weather, this is exactly the kind of advocacy we need.

New from us - YOU can bike in winter! In less than 10 minutes, we want to show you that in a winter city like Chicago, you can start biking in winter with what you already have in your closet. www.youtube.com/watch?v=m8w0...

Cities spend millions on plastic flex posts that get flattened in a week. Meanwhile, the cheapest, most effective design tool is a boulder. They protect people, enforce behavior, and actually survive doing their job.

You know a positive cultural shift towards active mobility is happening when... 👇

1/🌡️ Global warming passed a milestone on 17th Nov 2023 that barely made the news For the first time ever, the world's daily average temperature was 2.0°C above pre-industrial levels Here's what the data says about when that becomes the annual norm, & whether it's coming sooner than anyone expects🧵

When you learn how cheap and easy it is to create safer neighborhoods, all the time and effort we spend doing nothing feels like a waste.

There's growing evidence of safety risks of bigger cars. Heavier with higher bonnets & worse vision, bigger SUVs are: ⚠️14% more likely to kill you than if you're hit by a smaller car ⚠️increasing to 77% for children ⚠️and 200% more likely to kill a kid under 9 #VisionZeroLDN

btw You can help support @davewalker.bsky.social and his work by joining his Diagram Club here: diagramclub.substack.com

A classic reminder from @davewalker.bsky.social that might prove helpful for a few of your coworkers, friends, and family

Bellamystraat, Amsterdam in 1969 and today. I can't stand in the exact same spot as the photographer did then as it is now someones front garden!

Accessible public restrooms are essential urban infrastructure.

Halvemaansteeg & Rembrandtplein, Amsterdam in 1979 and today. From car-choked streets with little space for people to a lively car-free area with only trams, pedestrians & bikes permitted. Cafes and outdoor seating dominate the area. A reminder to politicians: design streets for the city you want.

Great Channel 4 News report on the latest #AMOC monitoring. "Trouble is: there is now growing scientific consensus that the AMOC is weakening." @noc.ac.uk youtu.be/JpOpsMOBsL4?...

The risk of a hothouse Earth trajectory: One Earth www.cell.com/one-earth/fu...

No academic certification can match the expertise of children who navigate their community’s streets on their own. Fortunately, certified experts who are willing to listen will find excellent teachers in such children. In this article, Bruce Appleyard shows us how it’s done.

I’m so saddened to hear of the closure of RoadPeace for financial reasons. The charity did so much good — supporting crash victims, standing with bereaved families at their darkest moments, & tirelessly campaigning for safer roads. I hope one day it can be re-established & continue its vital work.

Damrak, Amsterdam in 1987 and today. From multiple lanes for motor traffic there is now only one lane, in one direction, heading out of the city for cars and no car parking. Tram lines and cycleways remain in both directions.

Starting soon! www.youtube.com/live/zmllNBR...

Let alone their future driving permissions… Why is road crime treated differently to other crime? IMO complacency and acceptance of road danger as inevitable have dulled accountability. Strategy isn’t enough — we need a fundamental root & branch cultural reset. www.dailymail.co.uk/news/article...

Marine Heatwaves in the UK - 40 questions www.nature.com/articles/s44...

In a sane world, this would be front page news everywhere. But it will hardly be covered anywhere. The North Pacific Ocean surface warmed over twice as much over the past 15 years than it did over the preceding 156 years. That's an increase in warming rate of >2000%!

Utter madness bsky.app/profile/leon...

Your 'moment of doom' for Jan. 10, 2026 ~ Or even worse than that. "... we can expect more of the same. And by more of the same, I mean more record breaking temperatures, disasters and destruction." www.youtube.com/watch?v=7ACN...

We talked about this in detail on Climate Chat: www.youtube.com/live/BNZ_biC...

The (increased rate of) warming is mainly caused by increasing greenhouse gases and reducing sulphur air pollution from shipping and Chinese coal plants. And cloud feedbacks make it much worse. There is so much more regional warming in the pipeline!

How is 2026 doing so far? Hotter than expected. The global mean surface temperature anomaly for January 1-8, 2026, was 1.60°C above the 1850-1900 IPCC pre-industrial baseline.