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.
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.
Pinned
Søren Have
@sorenhave.dk
· Mar 13
How do we get mobility that creates more value than it destroys?
Mobility is the potential for movement. That the road is clear if I want to drive. That there is a bus or other public transport running on schedule. That there are safe sidewalks and bike lanes.
concito.dk
‘Breaking up [with transport infrastructure] is hard to do’ 🎶
But at CONCITO we’re trying to show the path, much inspired by the work of in Wales.
Read our recommendations in this new brief. #dktrp #dkgreen #dkpol concito.dk/en/concito-b...
But at CONCITO we’re trying to show the path, much inspired by the work of in Wales.
Read our recommendations in this new brief. #dktrp #dkgreen #dkpol concito.dk/en/concito-b...
Reposted by Søren Have
Now see here, what exactly is *too many* books?
Twitter accounts are based in Russia. BlueSky accounts are based in homes with, frankly, too many books, plants, obsolete cables, and pieces of rustic pottery, that could do with a bit of a tidying up, to be honest.
November 24, 2025 at 1:14 AM
Now see here, what exactly is *too many* books?
Reposted by Søren Have
#cop30 decision's "recalling with concern" that "historical cumulative net carbon dioxide emissions account for at least four fifths of the total carbon budget for a 50% probability of limiting global warming to 1.5C" was true *in 2019*.
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
unfccc.int
November 23, 2025 at 8:18 PM
#cop30 decision's "recalling with concern" that "historical cumulative net carbon dioxide emissions account for at least four fifths of the total carbon budget for a 50% probability of limiting global warming to 1.5C" was true *in 2019*.
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
It's now 94%, best guess. /1
unfccc.int/sites/defaul...
Reposted by Søren Have
The 2035 emissions standards aren't about additional emissions savings. It's about sending a message, very clearly, that EVs are the future-proof choice so that when (if?) ETS2 comes in it doesn't have to go through the roof to reduce emissions & cause rioting. The two measures are complementary.
November 23, 2025 at 8:28 PM
The 2035 emissions standards aren't about additional emissions savings. It's about sending a message, very clearly, that EVs are the future-proof choice so that when (if?) ETS2 comes in it doesn't have to go through the roof to reduce emissions & cause rioting. The two measures are complementary.
Reposted by Søren Have
Many conclude that #COP30 wasn't a big success, but not a big failure either.
Given the speed with which the climate crisis is developing, any COP that's not a big success is now a big failure, though.
We can't afford losing a year.
Given the speed with which the climate crisis is developing, any COP that's not a big success is now a big failure, though.
We can't afford losing a year.
November 23, 2025 at 8:13 AM
Many conclude that #COP30 wasn't a big success, but not a big failure either.
Given the speed with which the climate crisis is developing, any COP that's not a big success is now a big failure, though.
We can't afford losing a year.
Given the speed with which the climate crisis is developing, any COP that's not a big success is now a big failure, though.
We can't afford losing a year.
Reposted by Søren Have
“It remains the case that we are embarking on—in fact, accelerating—the biggest chemistry experiment on the planet in 66 million years, and one of the fastest derangements of the carbon cycle in the age of animal life.” www.theatlantic.com/science/2025...
Climate Realism Is a Delusion
By shooting for 3 degrees Celsius of warming, the world could slide toward a more cataclysmic 4 degrees.
www.theatlantic.com
November 23, 2025 at 7:09 PM
“It remains the case that we are embarking on—in fact, accelerating—the biggest chemistry experiment on the planet in 66 million years, and one of the fastest derangements of the carbon cycle in the age of animal life.” www.theatlantic.com/science/2025...
Reposted by Søren Have
Before Germany’s last elections, hundreds of combustion-engine cars had been vandalised, combined with pro-Green flyers left on site. State investigators now assume a Russian influence operation:
#fossilwarfare
www.n-tv.de/politik/Ermi...
#fossilwarfare
www.n-tv.de/politik/Ermi...
Ermittler vermuten Russland hinter Bauschaum-Attacken auf Autos
Hunderte Autos wurden vor einem Jahr in mehreren Bundesländern mit Bauschaum beschädigt. Die Ermittler gehen derzeit davon aus, dass damit die Grünen vor der Wahl diskreditiert werden sollten.
www.n-tv.de
November 23, 2025 at 2:27 PM
Before Germany’s last elections, hundreds of combustion-engine cars had been vandalised, combined with pro-Green flyers left on site. State investigators now assume a Russian influence operation:
#fossilwarfare
www.n-tv.de/politik/Ermi...
#fossilwarfare
www.n-tv.de/politik/Ermi...
Reposted by Søren Have
I really cannot recommend this excellent piece on Hammersmith Bridge highly enough
Hammersmith Bridge
Where did 25,000 vehicles go?
nickmaini.substack.com
November 21, 2025 at 10:24 PM
I really cannot recommend this excellent piece on Hammersmith Bridge highly enough
“Six years later, Hammersmith Bridge remains closed to vehicles. The solution proposed by local authorities costs £250m and has no funding.”
Here’s a crazy idea: Maybe if you don’t have money for maintaining the infrastructure you already have, you should stop building more?
Here’s a crazy idea: Maybe if you don’t have money for maintaining the infrastructure you already have, you should stop building more?
I really cannot recommend this excellent piece on Hammersmith Bridge highly enough
Hammersmith Bridge
Where did 25,000 vehicles go?
nickmaini.substack.com
November 23, 2025 at 4:53 PM
“Six years later, Hammersmith Bridge remains closed to vehicles. The solution proposed by local authorities costs £250m and has no funding.”
Here’s a crazy idea: Maybe if you don’t have money for maintaining the infrastructure you already have, you should stop building more?
Here’s a crazy idea: Maybe if you don’t have money for maintaining the infrastructure you already have, you should stop building more?
Reposted by Søren Have
Also: “Richmond Council’s survey revealed that even a few months after closure, 44% of former drivers had already switched to walking or cycling.” 👌🏻
November 23, 2025 at 4:51 PM
Also: “Richmond Council’s survey revealed that even a few months after closure, 44% of former drivers had already switched to walking or cycling.” 👌🏻
Reposted by Søren Have
Reposted by Søren Have
Look at @katharinehayhoe.com channel her apocalyptic optimist as she describes the fossil fuel swan song that we just witnessed at COP30. For the full conversation with @amywestervelt.bsky.social and me, tune into COPOut Episode 5, which airs TOMORROW!
November 23, 2025 at 2:17 PM
Look at @katharinehayhoe.com channel her apocalyptic optimist as she describes the fossil fuel swan song that we just witnessed at COP30. For the full conversation with @amywestervelt.bsky.social and me, tune into COPOut Episode 5, which airs TOMORROW!
Reposted by Søren Have
Interesting-looking new study finding lower electric vehicle adoption in areas with higher vote for the far-right AfD in Germany, independently from other factors
doi.org/10.1016/j.er...
doi.org/10.1016/j.er...
November 23, 2025 at 9:18 AM
Interesting-looking new study finding lower electric vehicle adoption in areas with higher vote for the far-right AfD in Germany, independently from other factors
doi.org/10.1016/j.er...
doi.org/10.1016/j.er...
Reposted by Søren Have
Two perfectly normal ads in the perfectly normal city of San Francisco.
November 22, 2025 at 11:42 PM
Two perfectly normal ads in the perfectly normal city of San Francisco.
Reposted by Søren Have
How to interpret the COP30 outcome?
Nobody ever said the Dead Thrall of the world's most profitable industry will be pretty.
Nobody ever said the Dead Thrall of the world's most profitable industry will be pretty.
November 22, 2025 at 11:36 PM
How to interpret the COP30 outcome?
Nobody ever said the Dead Thrall of the world's most profitable industry will be pretty.
Nobody ever said the Dead Thrall of the world's most profitable industry will be pretty.
“The Iran Meteorological Organization said it expected rain in 18 of Iran’s 31 provinces; but because the ground is baked so hard, soils have not been able to absorb precipitation”
A vicious circle.
A vicious circle.
“What once sounded unthinkable is now being said openly: Tehran is not viable; and evacuation orders are imminent.
As I wrote before, President Masoud Pezeshkian himself said that it might be necessary to relocate Tehranis in large number.” open.substack.com/pub/peterfra...
As I wrote before, President Masoud Pezeshkian himself said that it might be necessary to relocate Tehranis in large number.” open.substack.com/pub/peterfra...
Makran or Bust: Tehran's water crisis gets worse
Ten days ago I wrote that Tehran was approaching a point where warnings, pressure cuts and appeals to save water would no longer be enough.
open.substack.com
November 23, 2025 at 8:32 AM
“The Iran Meteorological Organization said it expected rain in 18 of Iran’s 31 provinces; but because the ground is baked so hard, soils have not been able to absorb precipitation”
A vicious circle.
A vicious circle.
Reposted by Søren Have
COP30 TEXT ANALYSIS: One way to read dense COP text is to focus on the verbs. These are helpfully italicised – and for good reason.
MOSTLY INACTIVE: Carbon Brief analysis of the “global mutirão” text finds 69 inactive verbs, requiring no action, against 32 active verbs.
1/4
MOSTLY INACTIVE: Carbon Brief analysis of the “global mutirão” text finds 69 inactive verbs, requiring no action, against 32 active verbs.
1/4
November 22, 2025 at 8:21 PM
COP30 TEXT ANALYSIS: One way to read dense COP text is to focus on the verbs. These are helpfully italicised – and for good reason.
MOSTLY INACTIVE: Carbon Brief analysis of the “global mutirão” text finds 69 inactive verbs, requiring no action, against 32 active verbs.
1/4
MOSTLY INACTIVE: Carbon Brief analysis of the “global mutirão” text finds 69 inactive verbs, requiring no action, against 32 active verbs.
1/4
Reposted by Søren Have
(With apologies for my typos)
Reminder that we should judge COPs for what they are — instruments to bring countries together to discuss how to coordinate climate policies, which will always be glocal (globally minded, locally bounded).
They aren’t magic substitutes for lack of domestic govts.
Reminder that we should judge COPs for what they are — instruments to bring countries together to discuss how to coordinate climate policies, which will always be glocal (globally minded, locally bounded).
They aren’t magic substitutes for lack of domestic govts.
I believe the better question is:
would a world without COPs work better, worse, or the same for climate?
I don’t think if it would crazily different but I for one want an annual timeline in which the climate cards are on the table, however partial and horrific.
would a world without COPs work better, worse, or the same for climate?
I don’t think if it would crazily different but I for one want an annual timeline in which the climate cards are on the table, however partial and horrific.
November 22, 2025 at 5:26 PM
(With apologies for my typos)
Reminder that we should judge COPs for what they are — instruments to bring countries together to discuss how to coordinate climate policies, which will always be glocal (globally minded, locally bounded).
They aren’t magic substitutes for lack of domestic govts.
Reminder that we should judge COPs for what they are — instruments to bring countries together to discuss how to coordinate climate policies, which will always be glocal (globally minded, locally bounded).
They aren’t magic substitutes for lack of domestic govts.
Reposted by Søren Have
Currently reading THE LONG HEAT and delighted / horrified to learn that the “wafer-thin mint” Monty Python skit is an allegory for the non-linearity of climate damages.
How so? Well…
1/2
How so? Well…
1/2
a man is sitting at a table with a plate of food .
ALT: a man is sitting at a table with a plate of food .
media.tenor.com
November 18, 2025 at 6:32 PM
Currently reading THE LONG HEAT and delighted / horrified to learn that the “wafer-thin mint” Monty Python skit is an allegory for the non-linearity of climate damages.
How so? Well…
1/2
How so? Well…
1/2
Reposted by Søren Have
One of the most controversial things I discovered in my #CrossChannelRail work is that the Avelia Horizon trains ordered by Eurostar do not comply with existing Channel Tunnel evacuation rules in the case of a controlled stop
Background, and how to overcome the issue 👇
jonworth.eu/the-avelia-h...
Background, and how to overcome the issue 👇
jonworth.eu/the-avelia-h...
The Avelia Horizon trains Eurostar has ordered from Alstom are not compliant with Channel Tunnel evacuation rules - what can be done about it? - Jon Worth
*** This post is an adapted version of one part of my #CrossChannelRail Project Final Report *** The two existing train types that operate long distance high speed services through the Channel Tunnel ...
jonworth.eu
November 22, 2025 at 12:32 PM
One of the most controversial things I discovered in my #CrossChannelRail work is that the Avelia Horizon trains ordered by Eurostar do not comply with existing Channel Tunnel evacuation rules in the case of a controlled stop
Background, and how to overcome the issue 👇
jonworth.eu/the-avelia-h...
Background, and how to overcome the issue 👇
jonworth.eu/the-avelia-h...
Reposted by Søren Have
November 22, 2025 at 9:31 AM
Reposted by Søren Have
“Protecting the environment is not a joke. Ignoring it means signing our own destruction.”
Not an excerpt of the German Environmental Minister or the EU delegates at the COP.
Words to national journalists by the executive head of the theocratic regime of Iran.
Not an excerpt of the German Environmental Minister or the EU delegates at the COP.
Words to national journalists by the executive head of the theocratic regime of Iran.
November 22, 2025 at 5:19 AM
“Protecting the environment is not a joke. Ignoring it means signing our own destruction.”
Not an excerpt of the German Environmental Minister or the EU delegates at the COP.
Words to national journalists by the executive head of the theocratic regime of Iran.
Not an excerpt of the German Environmental Minister or the EU delegates at the COP.
Words to national journalists by the executive head of the theocratic regime of Iran.
Reposted by Søren Have
This is good.
the reason why people care about this story #larrysummers #epstein #smolbean
TikTok video by Aidan Walker
www.tiktok.com
November 21, 2025 at 9:00 PM
This is good.
Reposted by Søren Have
In an era filled with tech dipshits who never developed emotionally past the age of 13 & use their wealth to become odious monsters ...
... listen to Steve Wozniak.
... listen to Steve Wozniak.
November 21, 2025 at 7:41 PM
In an era filled with tech dipshits who never developed emotionally past the age of 13 & use their wealth to become odious monsters ...
... listen to Steve Wozniak.
... listen to Steve Wozniak.
Reposted by Søren Have
Denmark's Social Democrats held as proof of Pollingism's core thesis: take up what polls as "popular" & ignore or echo oppo on scapegoating. And, yes, this can win you battles but as Danes (& Dutch) show - it moves electorate toward oppo long term.
www.theguardian.com/world/2025/n...
www.theguardian.com/world/2025/n...
Social Democrats in Denmark suffer sweeping election losses
PM Mette Frederiksen’s centre-left party loses control of Copenhagen for first time in more than 100 years
www.theguardian.com
November 21, 2025 at 4:59 PM
Denmark's Social Democrats held as proof of Pollingism's core thesis: take up what polls as "popular" & ignore or echo oppo on scapegoating. And, yes, this can win you battles but as Danes (& Dutch) show - it moves electorate toward oppo long term.
www.theguardian.com/world/2025/n...
www.theguardian.com/world/2025/n...