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IIASA @iiasa.ac.at · 9h

Marina Menga emphasized the need for scientists and science communicators to better explain concepts like uncertainty. She also highlighted the strong potential for telling stories showing how climate impacts are connected to other aspects of our lives such as health and migration.

IIASA @iiasa.ac.at · 9h

Holly Simpkin noted that communicators & scientists need to tell stories backed by robust science about what the world could look like in the future. This should include successes achieved so far – positive change is happening, and everyone can contribute to building the world we want to live in.

IIASA @iiasa.ac.at · 9h

Katharine Mansell explained that it is vital for scientists to distill the essence of their findings, and that there is an enormous task ahead of us to effectively communicate the implications of overshoot and the actions needed to deal with it.

IIASA @iiasa.ac.at · 9h

🗝️ Key takeaways:

Lisa Palmer said that narratives should aim to provide meaning to the scientific processes or topics being discussed. When we make topics more personal & relatable, we build bridges to a place where we can inspire the actions needed to achieve the world we want.

IIASA @iiasa.ac.at · 9h

Their closing panel session on Day 3, moderated by Cecilia Keating from @carbonbrief.org, explored how narrative and stories can explore the promises of net zero, the scientific evidence for net negative emissions, & how surpassing 1.5°C doesn’t change the near-term imperative to cut emissions fast.

Built Environments for a Cooler Planet: Sustainable Urbanization Pathways for the World of 2075

IIASA @iiasa.ac.at · 9h

At last week’s #OvershootConference at IIASA, Journalist in Residence, Lisa Palmer, along with science communicators Katharine Mansell, Holly Simpkin, and Marina Menga were tasked with gaining a better understanding of the narratives that can put the science into dialogue with a range of audiences.

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IIASA @iiasa.ac.at · 2d

🎉 Happy Birthday, IIASA! For over 50 years, the International Institute for Applied Systems Analysis has united science and policy to tackle global challenges - from climate and energy to data-driven sustainability - connecting the Global North and South through systems thinking. 🌍

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IIASA @iiasa.ac.at · 5d

#ICYMI 🌍 How can the built environment - a major source of emissions - become a driver of sustainable solutions?

Yesterday’s seminar with IIASA, the Research Council of Finland, & @aalto.fi University explored pathways for sustainable urbanization.

📺 Watch: www.youtube.com/live/dkMP0dP...

YouTube video by Aalto University

www.youtube.com

IIASA @iiasa.ac.at · 5d

Lecture and discussion: Climate Change in Austria - challenges, solutions & opportunities, with IIASA's Keywan Riahi.
📅 6 Oct 2025, 18:00
📍 Wiener Rathaus, Festsaal, Vienna
➡️ iiasa.ac.at/events/oct-2... @wien.gv.at

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IIASA @iiasa.ac.at · 6d

We leave the conference energized, inspired, and grateful for this incredible community. Watch this space for more conference highlights in the days to come.

🌍 Here’s to carrying the momentum forward! 🌍

ℹ️ overshootconference.org

Overshoot |

IIASA @iiasa.ac.at · 6d

👏 Special congratulations to the four winners of the Best Poster Award, sponsored by One Earth. Your outstanding work exemplifies the creativity and rigor driving this field forward.

Eduardo Alastrué de Asenjo
Chiara Ciscato
Saon Banerjee
Greta Shum

IIASA @iiasa.ac.at · 6d

🎬 And that’s a wrap on the #OvershootConference!

A huge thank you to our Scientific Steering Committee, Organizing Committee, and every single speaker and participant whose insights, questions, and collaboration made this event such a success.

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IIASA @iiasa.ac.at · 6d

✨ 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 |

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IIASA @iiasa.ac.at · 6d

🔹 Theme 8: Legal and justice implications of overshoot
International law provides important tools but also has limits. There is an urgent need for legal innovation and for scientific evidence to be more effectively harnessed in advancing climate justice.

IIASA @iiasa.ac.at · 6d

🔹 Theme 7: Loss and Damage
Losses and harms compound under overshoot requiring responses that integrate human-development, uncertainty, and lived realities.

IIASA @iiasa.ac.at · 6d

🔹 Theme 6: Adaptation & adaptation limits under overshoot
The level, timing and duration of peak warming influences adaptation limits and needs of ecological and social systems, as well as effectiveness and costs of adaptation options.

IIASA @iiasa.ac.at · 6d

🔹 Theme 7: Loss and Damage
Losses and harms compound under overshoot requiring responses that integrate human-development, uncertainty, and lived realities.

IIASA @iiasa.ac.at · 6d

🔹 Theme 5: Overshoot legacy and tipping elements
Overshoot risks triggering cascading and potentially irreversible changes. The only way to minimize these risks is to limit both the scale and duration of overshoot.

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IIASA @iiasa.ac.at · 6d

🔹 Theme 4: Climate impact (ir)reversibility
Even if global temperatures decline after overshoot, there is no going back on various biophysical climate impacts, as well as some social, economic, political, and cultural systems that could face new vulnerabilities.

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IIASA @iiasa.ac.at · 6d

🔹Theme 3: Earth System responses up to net zero and beyond
The assumption that Earth System responses can be reversed after net zero emissions is overly optimistic.

IIASA @iiasa.ac.at · 6d

🔹Theme 2: Carbon Dioxide Removal (CDR): Sustainability constraints and opportunities
CDR is indispensable for reducing global temperatures after overshoot, but its potential to reverse warming in a net-negative world is constrained by sustainability, feasibility, and other limits.

IIASA @iiasa.ac.at · 6d

🔹 Theme 1: Highest possible mitigation ambition under overshoot
Surpassing 1.5°C doesn’t change anything for required action in the near term. Reduce emissions, not ambitions.

IIASA @iiasa.ac.at · 6d

🧵 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:

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IIASA @iiasa.ac.at · 6d

💡 The discussions highlighted how overshoot will stress financial systems, livelihoods, and adaptation pathways and emphasized the need for equitable, anticipatory responses to unavoidable climate impacts.

ℹ️ overshootconference.org

Overshoot |