Christian Flachsland
@chflachsland.bsky.social
Professor of Climate Policy, Hertie School Centre for Sustainability
Reposted by Christian Flachsland
🚨Job Alert 🚨
Interested in working with us @pik-potsdam.bsky.social (Berlin based RD5, formerly MCC)? We are looking for a new #PhD student in my team, working on #policyevaluation, #politicaleconomy and #development.
3 years funded. Focus on research. No teaching obligations.
More information 👇
Interested in working with us @pik-potsdam.bsky.social (Berlin based RD5, formerly MCC)? We are looking for a new #PhD student in my team, working on #policyevaluation, #politicaleconomy and #development.
3 years funded. Focus on research. No teaching obligations.
More information 👇
November 10, 2025 at 2:36 PM
🚨Job Alert 🚨
Interested in working with us @pik-potsdam.bsky.social (Berlin based RD5, formerly MCC)? We are looking for a new #PhD student in my team, working on #policyevaluation, #politicaleconomy and #development.
3 years funded. Focus on research. No teaching obligations.
More information 👇
Interested in working with us @pik-potsdam.bsky.social (Berlin based RD5, formerly MCC)? We are looking for a new #PhD student in my team, working on #policyevaluation, #politicaleconomy and #development.
3 years funded. Focus on research. No teaching obligations.
More information 👇
Reposted by Christian Flachsland
“Can political activism foster electoral participation?” Study examines “1913 Pilgrimage, a large-scale nationwide march in support of women’s suffrage.” Finds “women’s activism can drive political participation even in the virtual absence of women politicians.” www.cambridge.org/core/journal...
November 2, 2025 at 9:00 PM
“Can political activism foster electoral participation?” Study examines “1913 Pilgrimage, a large-scale nationwide march in support of women’s suffrage.” Finds “women’s activism can drive political participation even in the virtual absence of women politicians.” www.cambridge.org/core/journal...
Reposted by Christian Flachsland
One of the most dramatic "blips" at a global level, ever.
robbieandrew.github.io/internationa...
robbieandrew.github.io/internationa...
October 18, 2025 at 9:34 AM
One of the most dramatic "blips" at a global level, ever.
robbieandrew.github.io/internationa...
robbieandrew.github.io/internationa...
Reposted by Christian Flachsland
Some thoughts on the strategic logic behind Kemi Badenoch’s announcement that she’d scrap the Climate Change Act (CCA).
It serves two functions:
1️⃣ It appeals to lukewarm pivotal voters in marginal seats sceptical of costly green measures.
2️⃣ It is designed to
www.theguardian.com/environment/...
It serves two functions:
1️⃣ It appeals to lukewarm pivotal voters in marginal seats sceptical of costly green measures.
2️⃣ It is designed to
www.theguardian.com/environment/...
Kemi Badenoch vows to repeal Climate Change Act
Tory leader says she would replace it with ‘cheap energy’ strategy, ending decades-long consensus on climate
www.theguardian.com
October 7, 2025 at 8:09 PM
Some thoughts on the strategic logic behind Kemi Badenoch’s announcement that she’d scrap the Climate Change Act (CCA).
It serves two functions:
1️⃣ It appeals to lukewarm pivotal voters in marginal seats sceptical of costly green measures.
2️⃣ It is designed to
www.theguardian.com/environment/...
It serves two functions:
1️⃣ It appeals to lukewarm pivotal voters in marginal seats sceptical of costly green measures.
2️⃣ It is designed to
www.theguardian.com/environment/...
"A growing number of studies have found that the most widely used offset programs continue to greatly overestimate their probable climate impact often by a factor of five to ten or more. "
www.annualreviews.org/content/jour...
www.annualreviews.org/content/jour...
October 7, 2025 at 9:12 PM
"A growing number of studies have found that the most widely used offset programs continue to greatly overestimate their probable climate impact often by a factor of five to ten or more. "
www.annualreviews.org/content/jour...
www.annualreviews.org/content/jour...
Reposted by Christian Flachsland
Sonntagsfrage zur Landtagswahl in Mecklenburg-Vorpommern • Infratest dimap / NDR: AfD 38 % | SPD 19 % | CDU 13 % | DIE LINKE 12 % | BSW 7 % | GRÜNE 5 % | Sonstige 6 %
➤ Verlauf: wahlrecht.de/umfragen/lan...
🗓️ Landtagswahl: 20. September 2026
#ltwmv
➤ Verlauf: wahlrecht.de/umfragen/lan...
🗓️ Landtagswahl: 20. September 2026
#ltwmv
September 25, 2025 at 5:19 AM
Sonntagsfrage zur Landtagswahl in Mecklenburg-Vorpommern • Infratest dimap / NDR: AfD 38 % | SPD 19 % | CDU 13 % | DIE LINKE 12 % | BSW 7 % | GRÜNE 5 % | Sonstige 6 %
➤ Verlauf: wahlrecht.de/umfragen/lan...
🗓️ Landtagswahl: 20. September 2026
#ltwmv
➤ Verlauf: wahlrecht.de/umfragen/lan...
🗓️ Landtagswahl: 20. September 2026
#ltwmv
Reposted by Christian Flachsland
Update of perhaps my favorite global climate policy indicator: The production gap report.
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
September 22, 2025 at 7:53 PM
Update of perhaps my favorite global climate policy indicator: The production gap report.
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
Update of perhaps my favorite global climate policy indicator: The production gap report.
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
September 22, 2025 at 7:53 PM
Update of perhaps my favorite global climate policy indicator: The production gap report.
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
Reposted by Christian Flachsland
For the first time the AfD has nudged ahead of the Union in this national polling aggregator, perhaps Germany's most reliable. Beware cope about the AfD losing this or that mayoral election, including in NRW this coming weekend. Something important is shifting.
CDU/CSU 25,4
AfD 25,6
SPD 14,6
Grüne 11,2
Linke 10,8
BSW 3,9
FDP 3,1
FW 1,6
pollytix.de/wahltrend
@pollytix.bsky.social
AfD 25,6
SPD 14,6
Grüne 11,2
Linke 10,8
BSW 3,9
FDP 3,1
FW 1,6
pollytix.de/wahltrend
@pollytix.bsky.social
September 22, 2025 at 8:14 AM
For the first time the AfD has nudged ahead of the Union in this national polling aggregator, perhaps Germany's most reliable. Beware cope about the AfD losing this or that mayoral election, including in NRW this coming weekend. Something important is shifting.
Reposted by Christian Flachsland
Registration for experts interested in serving as Expert Reviewers and providing scientific comments on the First Order Draft of the Special Report on Climate Change and Cities is now open!
Register here: apps.ipcc.ch/comments/src...
⚠️ Registration closes 30 Nov2025
🔗 www.ipcc.ch/2025/09/17/p...
Register here: apps.ipcc.ch/comments/src...
⚠️ Registration closes 30 Nov2025
🔗 www.ipcc.ch/2025/09/17/p...
September 19, 2025 at 3:05 PM
Registration for experts interested in serving as Expert Reviewers and providing scientific comments on the First Order Draft of the Special Report on Climate Change and Cities is now open!
Register here: apps.ipcc.ch/comments/src...
⚠️ Registration closes 30 Nov2025
🔗 www.ipcc.ch/2025/09/17/p...
Register here: apps.ipcc.ch/comments/src...
⚠️ Registration closes 30 Nov2025
🔗 www.ipcc.ch/2025/09/17/p...
Reposted by Christian Flachsland
This has been a tumultuous week in Australian climate politics! And a good example of how target setting becomes a focal point for agenda-setting on climate, as per @jacobedenhofer.bsky.social, @chflachsland.bsky.social and my paper (below)
www.theguardian.com/australia-ne...
www.theguardian.com/australia-ne...
Bowen says cutting emissions by more than 70% ‘not achievable’ as 2035 target criticised from all sides
Albanese says 62% to 70% range represents ‘the sweet spot’ as Coalition rejects ‘economy wrecking’ target while Greens label it a ‘betrayal’
www.theguardian.com
September 18, 2025 at 8:44 AM
This has been a tumultuous week in Australian climate politics! And a good example of how target setting becomes a focal point for agenda-setting on climate, as per @jacobedenhofer.bsky.social, @chflachsland.bsky.social and my paper (below)
www.theguardian.com/australia-ne...
www.theguardian.com/australia-ne...
Welcome to the Hertie School @climatemorgan.bsky.social!
We're excited to welcome Jennifer Morgan as a new Fellow at the Hertie School! 🌍
She'll bring her global climate policy expertise to our teaching and research, working closely with the Centre for Sustainability.
She'll bring her global climate policy expertise to our teaching and research, working closely with the Centre for Sustainability.
September 18, 2025 at 8:10 AM
Welcome to the Hertie School @climatemorgan.bsky.social!
Reposted by Christian Flachsland
We're excited to welcome Jennifer Morgan as a new Fellow at the Hertie School! 🌍
She'll bring her global climate policy expertise to our teaching and research, working closely with the Centre for Sustainability.
She'll bring her global climate policy expertise to our teaching and research, working closely with the Centre for Sustainability.
September 18, 2025 at 7:10 AM
We're excited to welcome Jennifer Morgan as a new Fellow at the Hertie School! 🌍
She'll bring her global climate policy expertise to our teaching and research, working closely with the Centre for Sustainability.
She'll bring her global climate policy expertise to our teaching and research, working closely with the Centre for Sustainability.
Reposted by Christian Flachsland
Exceptionally informative.
First instalment of my substack primer on right-wing populism in Europe is out.
jacobedenhofer.substack.com/p/explaining...
jacobedenhofer.substack.com/p/explaining...
Explaining the emergence and consolidation of right-wing populism: Part I
Stylised facts, or what has actually happened?
jacobedenhofer.substack.com
September 14, 2025 at 11:28 AM
Exceptionally informative.
Reposted by Christian Flachsland
A new chapter starts today ✨️
As I'll be completing my PhD this year, I just started a new position at the @hertieschool.bsky.social as a Research Associate at their Centre for Sustainability.
An exciting year between Paris and Berlin, from the end of the PhD to the beginning of something new 🙌
As I'll be completing my PhD this year, I just started a new position at the @hertieschool.bsky.social as a Research Associate at their Centre for Sustainability.
An exciting year between Paris and Berlin, from the end of the PhD to the beginning of something new 🙌
September 9, 2025 at 12:16 PM
A new chapter starts today ✨️
As I'll be completing my PhD this year, I just started a new position at the @hertieschool.bsky.social as a Research Associate at their Centre for Sustainability.
An exciting year between Paris and Berlin, from the end of the PhD to the beginning of something new 🙌
As I'll be completing my PhD this year, I just started a new position at the @hertieschool.bsky.social as a Research Associate at their Centre for Sustainability.
An exciting year between Paris and Berlin, from the end of the PhD to the beginning of something new 🙌
Reposted by Christian Flachsland
Previously headed by the foreign office, Germany’s #climatediplomacy is now consolidated at the environment ministry again.
But some things have survived the recent change of government. (1/2)
www.bundesumweltministerium.de/pressemittei...
But some things have survived the recent change of government. (1/2)
www.bundesumweltministerium.de/pressemittei...
Internationale Klimapolitik: Zuständigkeit wechselt, gemeinsames Engagement bleibt- BMUKN - Pressemitteilung
Die Bundesregierung stellt die internationale Klimapolitik neu auf. Die Federführung wechselt vom Auswärtigem Amt zum Bundesumweltministerium (BMUKN). Dort wird eine neue Abteilung für internationale ...
www.bundesumweltministerium.de
August 27, 2025 at 2:52 PM
Previously headed by the foreign office, Germany’s #climatediplomacy is now consolidated at the environment ministry again.
But some things have survived the recent change of government. (1/2)
www.bundesumweltministerium.de/pressemittei...
But some things have survived the recent change of government. (1/2)
www.bundesumweltministerium.de/pressemittei...
Reposted by Christian Flachsland
Im "Anti-Klima-Tracker", einer neuen Webseite, die letzte Woche online ging, kritisieren die Grünen klimapolitische Entscheidungen der Bundesregierung. Doch einige der dort gemachten Aussagen sind irreführend oder unzutreffend. Dazu ein Faktencheck: (1/12) www.gruene.de/politik-fuer...
August 21, 2025 at 10:03 AM
Im "Anti-Klima-Tracker", einer neuen Webseite, die letzte Woche online ging, kritisieren die Grünen klimapolitische Entscheidungen der Bundesregierung. Doch einige der dort gemachten Aussagen sind irreführend oder unzutreffend. Dazu ein Faktencheck: (1/12) www.gruene.de/politik-fuer...
Reposted by Christian Flachsland
Henrik Enderlein, former President of the Hertie School and founding Director of the @delorsberlin.bsky.social, passed away four years ago today at the age of 46.
We remember Henrik as a visionary leader, professor, teacher and mentor.
Our thoughts remain with Henrik's family and friends today.
We remember Henrik as a visionary leader, professor, teacher and mentor.
Our thoughts remain with Henrik's family and friends today.
May 27, 2025 at 10:54 AM
Henrik Enderlein, former President of the Hertie School and founding Director of the @delorsberlin.bsky.social, passed away four years ago today at the age of 46.
We remember Henrik as a visionary leader, professor, teacher and mentor.
Our thoughts remain with Henrik's family and friends today.
We remember Henrik as a visionary leader, professor, teacher and mentor.
Our thoughts remain with Henrik's family and friends today.
Very excited to join AR7 WGIII as Lead Author in Chapter 6 'Enablers & Barriers'.
The #IPCC has announced the authors selected for its Seventh Assessment Report.
664 experts from 111 countries have been invited to participate as Coordinating Lead Authors, Lead Authors, & Review Editors.
🌍 51% from developing countries
🚺 46% women
🔗 bit.ly/AR7AuthorsPR
664 experts from 111 countries have been invited to participate as Coordinating Lead Authors, Lead Authors, & Review Editors.
🌍 51% from developing countries
🚺 46% women
🔗 bit.ly/AR7AuthorsPR
August 19, 2025 at 9:21 PM
Very excited to join AR7 WGIII as Lead Author in Chapter 6 'Enablers & Barriers'.
Reposted by Christian Flachsland
As of August, do we know what fossil CO2 emissions will do in 2025?
I made an estimate in July, using IEA projections of fossil fuel use, to estimate 0.8% growth in 2025.
Carbon Monitor has an estimate based on Jan-Jun data, 0.7%.
But what about countries?
www.eenews.net/articles/in-...
1/
I made an estimate in July, using IEA projections of fossil fuel use, to estimate 0.8% growth in 2025.
Carbon Monitor has an estimate based on Jan-Jun data, 0.7%.
But what about countries?
www.eenews.net/articles/in-...
1/
August 15, 2025 at 8:54 AM
As of August, do we know what fossil CO2 emissions will do in 2025?
I made an estimate in July, using IEA projections of fossil fuel use, to estimate 0.8% growth in 2025.
Carbon Monitor has an estimate based on Jan-Jun data, 0.7%.
But what about countries?
www.eenews.net/articles/in-...
1/
I made an estimate in July, using IEA projections of fossil fuel use, to estimate 0.8% growth in 2025.
Carbon Monitor has an estimate based on Jan-Jun data, 0.7%.
But what about countries?
www.eenews.net/articles/in-...
1/
Reposted by Christian Flachsland
Today (w/ @ox.ac.uk @stanford @MIT @LSE) we’re sharing the results of the largest AI persuasion experiments to date: 76k participants, 19 LLMs, 707 political issues.
We examine “levers” of AI persuasion: model scale, post-training, prompting, personalization, & more!
🧵:
We examine “levers” of AI persuasion: model scale, post-training, prompting, personalization, & more!
🧵:
July 21, 2025 at 4:20 PM
Today (w/ @ox.ac.uk @stanford @MIT @LSE) we’re sharing the results of the largest AI persuasion experiments to date: 76k participants, 19 LLMs, 707 political issues.
We examine “levers” of AI persuasion: model scale, post-training, prompting, personalization, & more!
🧵:
We examine “levers” of AI persuasion: model scale, post-training, prompting, personalization, & more!
🧵:
Reposted by Christian Flachsland
The paper might sound nerdy, but it makes a broader point that I hope (political) economists take more seriously: institutions are not always constraints (though macro-level ones often are), sometimes they are choice variables for policymakers whose main purpose is not to directly influence
Working paper update 👇
July 19, 2025 at 10:13 AM
The paper might sound nerdy, but it makes a broader point that I hope (political) economists take more seriously: institutions are not always constraints (though macro-level ones often are), sometimes they are choice variables for policymakers whose main purpose is not to directly influence
Reposted by Christian Flachsland
As next to nobody understands elasticity of demand, I propose calling increased car use from building an extra lane 'the Jevons effect', and increased biking from building bike infrastructure 'the Hidalgo effect'.
They differ only in whether we like the outcome, but hey, that's how all this works.
They differ only in whether we like the outcome, but hey, that's how all this works.
Paris urban biking DOUBLED in just one year.
“Cycling in Paris has transcended mere trendiness; it’s become a fundamental aspect of the city’s identity. Despite challenges like inclement weather, cyclists continue to flock to the streets, setting new records and reshaping the urban landscape.”
“Cycling in Paris has transcended mere trendiness; it’s become a fundamental aspect of the city’s identity. Despite challenges like inclement weather, cyclists continue to flock to the streets, setting new records and reshaping the urban landscape.”
Paris cycling numbers double in one year thanks to massive investment and it's not stopping
The report delves into the nuances of Parisian cycling culture, exploring the vibrant community of riders who navigate the city's streets
momentummag.com
July 19, 2025 at 9:15 AM
As next to nobody understands elasticity of demand, I propose calling increased car use from building an extra lane 'the Jevons effect', and increased biking from building bike infrastructure 'the Hidalgo effect'.
They differ only in whether we like the outcome, but hey, that's how all this works.
They differ only in whether we like the outcome, but hey, that's how all this works.
Reposted by Christian Flachsland
Working paper update 👇
July 19, 2025 at 8:38 AM
Working paper update 👇
Working paper update 👇
July 19, 2025 at 8:38 AM
Working paper update 👇