Carl Schleussner
@carlschleussner.bsky.social
1.9K followers 140 following 180 posts
Climate Scientist at @iiasa.ac.at and Humboldt Universität zu Berlin Views are my own.
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Reposted by Carl Schleussner
rtmcswee.carbonbrief.org
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...!)
Reposted by Carl Schleussner
iiasa.ac.at
✨ 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
Overshoot |
overshootconference.org
Reposted by Carl Schleussner
aundw.bsky.social
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...
Reposted by Carl Schleussner
iiasa.ac.at
🧵 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:
Reposted by Carl Schleussner
iiasa.ac.at
🎭 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 Road Not Taken (so far)
Trailer for the performative lecture taking place at the 1st Overshoot Conference on October 1st, 2pm. A performative lecture is a lecture based on an academic paper…
vimeo.com
Reposted by Carl Schleussner
iiasa.ac.at
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:
Reposted by Carl Schleussner
iiasa.ac.at
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
Reposted by Carl Schleussner
iiasa.ac.at
🎤 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
Reposted by Carl Schleussner
iiasa.ac.at
🌍 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.
Reposted by Carl Schleussner
danielhuppmann.bsky.social
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
First ever international conference on climate overshoot at IIASA
As global temperatures approach the 1.5°C threshold, understanding the risks of climate overshoot has become an urgent scientific and policy challenge. From 30 September to 2 October 2025, IIASA will ...
iiasa.ac.at
Reposted by Carl Schleussner
iopp-environment.bsky.social
🌍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/...
carlschleussner.bsky.social
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 🎧
carlschleussner.bsky.social
It's of course not quite the finale yet - one more podcast to come on Monday :)
carlschleussner.bsky.social
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/
carlschleussner.bsky.social
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...
Reposted by Carl Schleussner
benmsanderson.bsky.social
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
hausfath.bsky.social
I have a new @nytimes.com guest essay w/ @davidkeith.bsky.social about sunlight reflection. We note its not a solution for climate change and at best a band aid to treat systems, and suggest if its ever done it should only be to replace the cooling from air pollution today:
Opinion | A Responsible Way to Cool the Planet
A small, carefully scaled geoengineering program could compensate for the loss of cooling as we eliminate sulfur pollution.
www.nytimes.com
carlschleussner.bsky.social
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...
carlschleussner.bsky.social
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...
Reposted by Carl Schleussner
frediotto.bsky.social
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...
Reposted by Carl Schleussner
bberwyn.bsky.social
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.
Top US Energy Official Lobbies for Fossil Fuels in Europe - Inside Climate News
European climate experts say the pro-fossil fuel arguments are based on climate disinformation.
insideclimatenews.org
carlschleussner.bsky.social
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. 👇👇👇
carlschleussner.bsky.social
And here comes Overshoot Podcast number 3 🎧. @iiasa.ac.at 's Keywan Riahi talks about Carbon Dioxide Removal: Sustainability Constraints and Opportunities: overshootconference.org/the-overshoo...
and here: open.spotify.com/episode/4yPi...