“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...

One of the most dramatic "blips" at a global level, ever. robbieandrew.github.io/internationa...

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/...

"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...

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

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

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

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.

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...

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...

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.

Exceptionally informative.

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 🙌

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...

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...

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.

Very excited to join AR7 WGIII as Lead Author in Chapter 6 'Enablers & Barriers'.

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/

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!  🧵:

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

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.

Working paper update 👇

Working paper update 👇

Our updated working paper with @jacobedenhofer.bsky.social and @chflachsland.bsky.social - Introducing and applying the Climate Institutions Analysis Framework (CIAF) - is now available ⬇️ all feedback welcome!

Introducing and applying the Climate Institutions Analysis Framework (CIAF): A comparative analysis of climate institutions in Germany, the United Kingdom, Sweden, and Australia using the CIAF: https://osf.io/jf8ah

Unrequited Love: Estimating the Electoral Effect of a Place-based Green Subsidy with a 2D Regression Discontinuity Design: https://osf.io/s4nje

Climate change is a by-product of progress in the same way as obesity is a by-product of nutrition. For goodness sakes, it's the 21st century! We have the technology to enjoy progress without trashing the planet.

Much more sweeping is the change that the COM has just proposed a massive shift in the shares in the budget away from regional and agricultural policy towards common spending on things like decarbonisation or innovation. This is an important step to match the EU budget and proclaimed EU priorities.

The Portuguese far right party CH has been growing spectacularly, shattering views of the country as immune to this phenomenon. This has prompted a discussion about where their votes come from. Some thoughts on this, prompted by newly released survey data:

"find a strong relationship between mobility and support for the far right across 11 European countries. [...] demonstrate an asymmetry: while downward mobility predicts increased far-right voting, upward mobility has little effect." journals.sagepub.com/doi/epub/10....

“Without the office in place, there’s not a focal point for the organization of U.S. climate diplomacy, but that seems to be the point, right? To not have the U.S. engaging in climate diplomacy seems to be the policy goal of the administration,” Meyer said. www.washingtonpost.com/climate-envi...

This figure from the article illustrates that the low adoption of air conditioning in European cities results in much higher heat-related mortality during extreme heatwaves compared to American cities, where air conditioning is more widespread.

📣 Call for Applications 📣 3-year Postdoc position in Berlin 🚀 Join our Comparative Political Behavior Group at @humboldtuni.bsky.social & the @humboldt-govlab.bsky.social Great people, great projects, great city – come work with us! 🗓️ Deadline: 31 July 2025

Must-read for all EU climate politics nerds: @ziaweise.bsky.social with an update on the nuances of the unfolding parliamentarian political battle over the new EU 2040 target.

Gestern haben die Konservativen zugelassen, dass die Rolle des Berichterstatters für das wichtigste Klimagesetz dieser Legislaturperiode an die Patriots for Europe geht - eine rechtsextreme Fraktion, zu der z.B. die österreichische FPÖ und der französische Rassemblement National um Le Pen gehört.

This is unethical, but tempted to include white text telling an AI reviewer to reveal itself in my next submission asia.nikkei.com/Business/Tec...

Im ersten Halbjahr 2025 war Wind die stärkste Stromquelle in Deutschland. Solar hat erstmals die Braunkohle überholt und ist auf Platz zwei gelandet. Weitere spannende Grafiken gibt es in unserer Halbjahresauswertung 2025. www.energy-charts.info/downloads/St...

For the first time, solar produced more electricity than lignite in Germany for the first half of the year. 60% of power generation was renewable.

Germany has become one of the EU's top solar producers — below map showing % of solar in generation this year so far.

And here's the share of renewables in power generation across the EU for 2025 to date. All from the excellent www.energy-charts.info

great read! other work that may be relevant for you: www.sciencedirect.com/science/arti... also onlinelibrary.wiley.com/doi/full/10.... or www.sciencedirect.com/science/arti... or an upcoming paper in BJPS: osf.io/bq356_v4

You know unless people actually try to stop him this guy is totally going to do death camps

Lesenswertes Interview mit @chflachsland.bsky.social ariadneprojekt.de/personen/chr...

This paper by @bistline.bsky.social and @cwolfram.bsky.social is well worth a read www.journals.uchicago.edu/doi/abs/10.1...

🎉 Congratulations, #HSClassOf2025! Yesterday, we had the pleasure of celebrating this year's graduates at the Berliner Philharmonie. We were happy and proud to see many of our incredible students. We wish you all the success for your future and look forward to seeing the impact you will make! 🌍🎓

Developing this manuscript with @jacobedenhofer.bsky.social has been a rewarding and stimulating exercise over the past year. Genuinely interested in critical feedback. 1/2

Brussels officially launches CBAM downstream expansion process

We will keep you posted once we have taken this next step. In the meantime, we invite all feedback—conceptual, empirical, technical. Thank you for reading! osf.io/preprints/so...