Preprint out today in ESDD. SRM's biggest risk is us. 'Peak-shaving' is a best-case scenario, with strong governance and international cooperation. We propose a framework for messier geoengineering futures, which look more like, you know, the news. /1 egusphere.copernicus.org/preprints/20...

Submissions for abstracts to EGU26 are open until next week. @imenke.bsky.social , @etheokritoff.bsky.social , Noah Walker-Crawford, @rosapietroiusti.bsky.social , and I are looking forward to your contributions to our climate science and litigation-themed outreach session.

In the world we live in today, that is 1.3C warmer due to our continued burning of fossil fuels, the extreme rainfall leading to disastrous flooding in many parts of Asia is up to 50 to 160% more intense - new @wwattribution.bsky.social study www.worldweatherattribution.org/increasing-h...

Zum Abschluss der #COP30 hat die @wienerzeitung.at mehrere Expert:innen um Antworten auf die drängenden Fragen gebeten: Klimaangst, soziale Dimension der Emissionen und Auswirkungen, Rahmenbedingungen & Strukturen, das Pariser Klimaabkommen, Handlungsoptionen... #WissenSchafftKlimaschutz

⚖️ Are you working on topics that could be relevant for climate litigation? ➡️ Submit an abstract to our outreach session (which allows you to submit a second abstract) #EGU26 meetingorganizer.copernicus.org/EGU26/sessio...

A fantastic effort from the @carbonbrief.org team pulling this together. A great resource summarising major outcomes and process at COP30. A must read 👇👇👇 And just a day after the gavel came down. Impressive. I bet next year, they'll beat the COP closing plenary :)

2025 was again a severe #hurricane season with 4 major hurricanes (3 cat 5 hurricanes). In terms of accumulated cyclone energy (ACE) it was slightly above a normal season. Seasonal forecasts (including ours 🥳) predicted the ACE well this year 💪

Against the backdrop of negotiations at #COP30, leading climate scientists have released the Búzios Scientific Statement, offering a clear assessment of the world’s remaining options to return to 1.5°C of warming by the end of the century. 🔗 iiasa.ac.at/news/nov-202...

Búzios Scientific Statement 100 climate researchers, coordinated by @pik-potsdam.bsky.social & @iiasa.ac.at, released a joint statement to inform the #COP30 negotiations and provide guidance on difficult but doable global efforts designed to limit dangerous overshoot of 1.5°C as much as possible.

There's an science statement that emerged from this weeks IAMC conference in Buzios, Brasil 5 key insights including 2035 benchmarks for GHG and fossil fuel reductions, PV+Solar upscaling Check it out here: drive.google.com/file/d/1ofMw... Open for sign-up here: forms.gle/FPrV3w6cMu8h...

Check out the IEA NZE here tinyurl.com/2ctf7mrx (but ignore the unrealistic-zombie-nightmare (CPS) scenario) For a nice comparison, see this new high ambition pathway by @climateanalytics.org and the REMIND team at @pik-potsdam.bsky.social - tinyurl.com/y9m8z8jk

Climate emulators are a great tool to explore a wide range of possible climate futures. Here comes MERCURY - utilising the power of image-compression-based techniques for memory-efficient emulation. Fantastic work led by @shrutinath97.bsky.social agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Excellent compilation of viewpoints in @natclimate.nature.com on the Paris Agreement Articles. Honoured to have contributed together with a fantastic group of experts. 👇👇👇

Stories abound these days showing that global warming exceeding 1.5C is now part of science's best estimate. What does that mean for the #ParisAgreement 1.5C goal? A good time to revive a thread about a piece we wrote earlier this year on this topic in @science.org 👇🌍🌡️

COP30: Study reveals “highest possible ambition” for countries' climate pledges With COP30 kicking off on Monday, a new paper by Julia Schönfeld and Professor Joeri Rogelj provides a framework for assessing countries’ climate pledges 🧵 Learn more: ow.ly/CiB050XnMK2

Excited to announce our #EGU26 session on Climate Risk Assessment for Finance & Insurance Sectors with @mattpriestley.bsky.social A. Ciullo @hcbloomfield19.bsky.social @natalieslord.bsky.social meetingorganizer.copernicus.org/EGU26/sessio... @iiasa.ac.at @riskkan.bsky.social @lamont.columbia.edu

I'm proud to be part of the 2025 #TIME100Climate list of influential leaders. Link to the full list of 2025 #TIME100Climate time.com/collections/... Link to my page in the 2025 #TIME100Climate time.com/collections/...

This is how climate injustice unfolds. There is both an economic logic to cutting emissions now & a moral imperative to rapidly scale up international finance for loss and damage and adaptation in the most vulnerable countries.

Really important paper led by my @iiasa.ac.at colleague Alex Nauels www.nature.com/articles/s41... “The difference between decisive climate action today and continued high emissions is not just measured in degrees of warming but also in meters of sea-level rise” 👏👏👏

New research shows that near-term mitigation could spare future generations around 0.6 meters of sea-level rise caused by emissions between 2020 and 2090, making today’s decisions critical not only for limiting warming but also for coastal impacts. 🔗 iiasa.ac.at/news/oct-202...

The world’s largest fossil fuel and cement companies should shoulder a major share of the investment needed to develop carbon removal technologies, according to a new peer-reviewed study in @climate-policy.bsky.social. #carbonmajors #CDR #climatepolicy

Merz & Co wollen die EU-Klimaziele aufweichen?! Nicht mit uns 😡 In einem offenen Brief mit Wissenschaftler*innen fordern wir die Bundesregierung jetzt auf, sich für ein starkes Ziel von mind. 90% Reduktion bis 2040 einzusetzen & nicht noch zu verzögern! 👉 fridaysforfuture.de/offener-brie...

🎙️ #EditionZukunft @derstandard.at Über das Konzept #Overshoot und die Dringlichkeit rascher Reduktion unserer Treibhausgas-Emissionen zur Minimierung der Risiken durch die Erderhitzung. @carlschleussner.bsky.social vom @iiasa.ac.at im Gespräch mit @philippramer.at #WissenSchafftKlimaschutz

Der @derstandard.at hat unserer Overshoot Konferenz noch ein längeres Interview gewidmet 👇👇👇 www.derstandard.at/story/310000...

📰 Your evening read on the IIASA #OvershootConference: @carlschleussner.bsky.social tells @carbonbrief.org that the scientific community is only just “beginning to appreciate” the need to understand & quantify how different overshoot pathways affect adaptation. www.carbonbrief.org/overshoot-ex...

NEW – Experts: The key ‘unknowns’ of overshooting the 1.5C global-warming limit | @ceciliakeating.carbonbrief.org and @rtmcswee.carbonbrief.org Read here: buff.ly/yPWMH59

Last week, @ceciliakeating.carbonbrief.org and I attended the first-ever conference on climate "overshoot" in Vienna. Here's our summary of the wide-ranging discussions. (Bearing in mind we were two journalists covering 8 conference themes...!)

Super comprehensive report on our @iiasa.ac.at overshoot conference by @carbonbrief.org. Great summary and overview on some of the central discussion points. Check it out👇👇👇 www.carbonbrief.org/overshoot-ex...

✨ The reflections sent a powerful message: overshoot is not just a scientific scenario, it is a lived reality that compounds risks, deepens inequities, & raises questions of justice. Responding requires courage, collaboration, & commitment across all levels of society. ℹ️ overshootconference.org

In Ö entfallen mehr als 50 % der #Treibhausgase auf die obersten 10 %. 🏭💨 Höchste Zeit, Reiche und Konzerne stärker in die Pflicht zu nehmen, meinen @nicolasprinz.bsky.social, @sixev4.bsky.social & Judith Derndorfer: www.awblog.at/klima-energi...

🧵 As the #OvershootConference drew to a close today, the final plenary offered a space to step back and reflect across themes. What stood out was both the urgency and interconnectedness of the challenges we face when confronting climate overshoot:

🎭 Science met art at the #OvershootConference today through various science-art performances. Gloria Benedikt's performative lecture, and works by the et art. collective, Mehrta Shirzadian, Lea Aigner, and Rosalie Arendt, brought new perspectives to the overshoot challenge vimeo.com/1119056369/0...

The third and final day of the #OvershootConference kicked off with an insightful report-back and reflection session, where theme leads shared insights from their discussions so far. See insights from discussions on Day 2 in the thread below:

Day 2 of the #OvershootConference started with a report back & reflection session followed by plenaries, panels, and parallel sessions exploring critical questions around the core conference themes. Stay tuned for highlights, quotes, and snapshots! ℹ️ overshootconference.org @climateworks.org

🎤 Dr. Jimmy Fletcher, Former Minister of Saint Lucia and Founder of the Caribbean Climate Justice Project, delivered powerful remarks during a social dinner at the close of Day 1 of the #OvershootConference: “Overshoot might be a phase but never a future we accept.” @carlschleussner.bsky.social

🌍 The first international #OvershootConference kicked off at IIASA today with an inspiring plenary session that set the tone for an important week of dialogue on pathways beyond overshoot.

Starting today: 🌍 First international conference on #ClimateOvershoot at #IIASAVienna! 📅 30 Sep–2 Oct 📍Laxenburg, Austria 🇦🇹 As we edge closer to the 1.5 °C limit, understanding the implications for mitigation, adaptation limits and climate justice has never been more urgent. @iiasa.ac.at

🌍New #ERL focus collection on #climate #overshoot is open! Linked to @iiasa.ac.at Overshoots conference in Vienna this week. ERL Publisher Lauren Carter will be attending, email to discuss a contribution: [email protected] 📅Deadline: 30 April 2026 🔗 iopscience.iop.org/collections/...

Less than 24hrs until the conference starts and our last podcast is out (in time for those of you travelling to Vienna): overshootconference.org/the-overshoo... The fantastic Lavanya Rajamani from @ox.ac.uk speaks about Legal and Justice Implications of Overshoot. Don't miss it 🎧

Grand Finale for the Overshoot Conference Podcast: Episode 8 is out on Loss & Damage with Sindra Sharma from @canpacificislands.bsky.social open.spotify.com/episode/5eTn... AND: registration for the livestream of the plenary sessions is open now: overshootconference.org/registration/

And Episode 7 is online. Kristie L. Ebi speaks about: Adaptation and Adaptation Limits under Overshoot. A perspective all too often missed when we discuss climate overshoot, so make sure to tune in: overshootconference.org/the-overshoo... open.spotify.com/episode/6p0k...

Sorry, but disagree with @hausfath.bsky.social here. You open Pandora's box, you ain't closing it again. We've already seen with Paris that well intentioned international agreements do not translate into physical reality and SRM governance is a much harder problem. Zero is the only safe level. /1

In time for the weekend. Episode 6 🎧 Jonathan Donges from @pik-potsdam.bsky.social speaks about Overshoot Legacy and Tipping Elements. Don't miss it 👇👇👇 overshootconference.org/the-overshoo... and here: open.spotify.com/episode/11F3...

Episode 5 is online. Honoured to have Debra Roberts, former @ipcc.bsky.social AR6 WG2 Co-Chair, to speak about "Climate impact (ir)reversibility" 🎧 overshootconference.org/the-overshoo... and here: open.spotify.com/episode/2JBt...

The summer is over - and for about 16,600 people across 854 European cities that doesn't mean autumn comes, but death. People who would still be alive if it wasn't for our burning of fossil fuels. - New study with @lshtm.bsky.social www.imperial.ac.uk/grantham/pub...

For decades, there has been a highly organized war on science in the U.S., mainly funded by fossil fuel companies, and their propaganda is now official government policy.

And the episodes keep coming. Now online Episode 4 with Deliang Chen from Tsinghua University talking about "Earth System responses up to net zero and beyond" Don't miss it. 👇👇👇

Nearly one-quarter of heatwaves would have been ‘virtually impossible’ without global warming — and can be attributed to the emissions of individual energy producers go.nature.com/3Kir39u

🚨 Important paper in Nature: "Systematic attribution of heatwaves to the emissions of carbon majors". www.nature.com/articles/s41...

Hot off the press: We can provide for the first time a systematic attribution of recent #heatwaves to the emissions of #carbon_majors. Essential new #Nature article coordinated by @yannquilcaille.bsky.social at @ethz.ch, with numerous contributors @usyseth.bsky.social: www.nature.com/articles/s41...