Søren Have
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sorenhave.dk
Søren Have
@sorenhave.dk
Mobility and Infrastructure Lead at green think tank CONCITO.
Living in Frederiksberg, Denmark.
M.Sc. & PhD (math).

Follow me if you are into climate action, transport/mobility and related areas. Here I write mostly in English, but occasionally in Danish.
Reposted by Søren Have
From @hausfath.bsky.social's new piece over at CarbonBrief on the causes of the last three years of accelerated warming.

Chart below specifically shows range of estimates of warming caused by the International Maritime Organization's 2020 regulations. (That's Hansen's estimate at the top)
December 12, 2025 at 3:31 AM
Reposted by Søren Have
New from me: How can China meet its 2030 emission commitments after falling badly off track? The country will have to very substantially overachieve its clean energy targets and limit plans for runaway expansion of coal power & petrochemical expansion in the next 5-yr plan.
December 11, 2025 at 5:09 PM
Reposted by Søren Have
The UN Decade of Sustainable Transport has officially launched, marking a major milestone for safe, affordable, accessible and low-carbon mobility worldwide. SLOCAT is committed to advancing this global effort through science-based knowledge and multi-actor partnerships. 🌐
December 11, 2025 at 10:14 PM
Reposted by Søren Have
"Weakening the 2035 target would not only slow vehicle decarbonisation; it would also disrupt investment planning for grids and charging networks." Says Kai Tegethoff
December 12, 2025 at 5:25 AM
Reposted by Søren Have
🌎 Il y a 10 ans, la COP21 faisait de Paris le cœur battant du monde.

195 pays signaient l’Accord de Paris, un tournant historique pour le climat.

Demain, à la tombée de la nuit, la Tour Eiffel s’illuminera en vert pour rappeler le long chemin parcouru depuis et l’urgence de continuer à agir !
December 11, 2025 at 4:54 PM
Reposted by Søren Have
Original photograph was a depiction of construction workers—blue collar people who built New York City but were rarely acknowledged & were certainly underpaid—while this one is a depiction of well-known billionaires whose AI empires are built on stealing the intellectual property of everyone else.
This...looks terrible? Is the magazine making some point about what AI still can't do, because otherwise, I don't get why you'd go out with something that looks like it was put together with safety scissors and Elmer's Glue.
December 11, 2025 at 4:00 PM
Reposted by Søren Have
We at @giz.de are proud to support the launch of the UN Sustainable #TransportDecade.

Our contributions: RIDE to strengthen applied research, the Transport Data Commons Initiative to improve open data access, and MobilizeMinds to build global human capacity.

Read more: tinyurl.com/53cavmrr
December 11, 2025 at 3:26 PM
Reposted by Søren Have
I explained to Politico Europe why cities full of robotaxis would be a congested mess.

Ways to mitigate risk:
🔹 Use congestion pricing (or another variable tax on city driving)
🔹 Use traffic cameras, which deter traffic violations by robotaxis (and human drivers)

www.politico.eu/newsletter/g...
December 11, 2025 at 3:11 PM
Me neither.

I wonder if the European robotaxi proponents live in the suburbs or just have a tech fascination?
I really don't understand why European cities would jeopardize their (very good!) transport networks by introducing robotaxis.
December 11, 2025 at 7:05 PM
Reposted by Søren Have
What is more important than the five-year extension is conceding to the automotive lobby's key demand: not to assess plug-in hybrids based on their actual (much higher) emissions, as was going to be introduced in the coming years, but to continue to calculate using theoretical values.
December 11, 2025 at 2:41 PM
Reposted by Søren Have
I hope you like gridlock!

"[Rivian CEO] Scaringe said he was 'very bullish' on his cars being self-driving in the next couple of years, such that 'you can own a car, but it can drop you at the airport, it can pick your kids up from school, it can go get things from the store for you.'"
Rivian's CEO said self-driving cars shouldn't just be able to drive, but also run errands for you like a secretary
CEO RJ Scaringe said he wants his AI-powered cars to be able to coordinate their own servicing, so their owners don't have to.
www.businessinsider.com
December 11, 2025 at 1:17 PM
Reposted by Søren Have
🌐 The UN Decade of Sustainable Transport (2026–2035) is officially launching! Established in 2023 by the UN General Assembly, it aims to accelerate safe, affordable, accessible & low-carbon transport systems worldwide. A defining moment for sustainable mobility. #UNDecade
December 10, 2025 at 4:40 PM
Reposted by Søren Have
Santiago de Chile now runs 3,000+ electric buses — the 3rd-largest fleet globally.

electrive summarises key insights from our study: stable policy, innovative financing, clear long-term targets.

Article 👉 www.electrive.com/2025/12/04/w...

Study 👉 www.agora-verkehrswende.org/publications...
What Europe can learn from Chile’s rapid shift to electric public transport - electrive.com
Santiago de Chile has emerged as the world’s third-largest operator of electric buses after Beijing and Shenzhen, with 3,059 units running in Santiago as of
www.electrive.com
December 11, 2025 at 8:26 AM
Never seen before: Panda attacks EV charger! 🐼

As the posting says: No humans, living pandas or other animals were harmed during the incident. 🤣
December 11, 2025 at 1:21 PM
Reposted by Søren Have
SKULL OF THOMAS AQUINAS: TAKE A LEFT NOW
PRIEST: No, the GPS says we have to keep going—
SKULL: I KNOW A SHORTCUT
PRIEST: Do you remember the last ti—
SKULL: FOR THOSE WITH FAITH, NO EVIDENCE IS NECESSARY; FOR THOSE WITHOUT IT, NO EVIDENCE WILL SUFFICE
'Skull of St. Thomas Aquinas being transported to Fossanova Abbey.'
Photograph by Daniel Ibanez
December 10, 2025 at 5:10 PM
Reposted by Søren Have
Western Washington is currently experiencing record flooding from a series of strong atmospheric rivers. 12 rivers are at major flood stage. 100,000 people await evacuation orders.

Will some places see less severe climate impacts than others? Yes. Does anywhere promise safe haven? Absolutely not.
Climate migration is difficult to study, and even harder to predict, because a complex constellation of factors guides the decision to pick up and move. But some experts say a historic population shift has already begun, and Western Washington should start preparing now to become a “climate haven.”
Is the Pacific Northwest ready for a wave of climate migration?
www.kuow.org
December 11, 2025 at 1:35 AM
Reposted by Søren Have
Made a site comparing the sizes of living things :)

The great Julius Csotonyi spent 5 months painting over 60 illustrations for the site, no ai used

> neal.fun/size-of-life/
December 10, 2025 at 4:03 PM
Reposted by Søren Have
🚨 Zombie-ship just passed through Danish waters.

The ship ARCUSAT (IMO 1095337) does not exist in the IMO GISIS database. It is a purely fictional ID.

Covered by Lloyds List here:

www.lloydslist.com/LL1155512/Fr...
December 10, 2025 at 10:37 PM
Reposted by Søren Have
Join our next webinar 👉 ’How the EU Can Set the Aviation Industry on Track for Net Zero’

🗓️ Thursday December 11, 1430 GMT

✈️ This webinar will cover how existing regulations fail, how industry has fought regulation & how the EU can facilitate emissions reductions

📌 influencemap.org/event/How-th...
November 28, 2025 at 10:24 AM
Reposted by Søren Have
Since 2000, London has added more than 1.9 million residents (+26%), but the number of vehicle miles driven has declined by 10%; it's declined most spectacularly in the center.

Outside of London, vehicle miles traveled have increased rapidly over the same period. content.tfl.gov.uk/travel-in-lo...
December 10, 2025 at 7:10 PM
Reposted by Søren Have
After NYC installed 2,000 speed cameras, crashes fell 30% and injuries 16%.

doi.org/10.1073/pnas...
December 10, 2025 at 4:39 PM
Reposted by Søren Have
War is peace.
The EPA has removed references about humans causing climate change from its website. No US government website can be trusted for science information.
December 10, 2025 at 4:04 PM
Reposted by Søren Have
I need to get the electrification staircase in to the website pronto. I promise it is coming!
December 10, 2025 at 12:27 PM
Reposted by Søren Have
December 9, 2025 at 9:58 PM
Reposted by Søren Have
This cannot be emphasised enough: the EU actually does have the power to stand up to other super powers, if it chooses to do so. That is why they universally loathe it. We need to strengthen the EU, buttressing its democratic institutions. #eupol
December 10, 2025 at 9:59 AM