We have just published the final report gathering all key points and resources from the Clustering Event!

What is the Clustering Event?

The Clustering Event was organized in collaboration between TipESM and ClimTip, two sister projects funded under the same Horizon Europe call on Climate-related tipping points. The event took place on 7-10 April 2025 in Paris, France, hosted at the Henri Poincaré Institute of the Sorbonne University and online. It consisted of three parts: (1) a scientific conference, (2) a cross-project workshop (breakout sessions), and (3) a session on storylines. The scientific conference was arranged around five themes related to tipping points research:

• Cryosphere;
• Biosphere, including the Amazon;
• Atlantic Meridional Overturning Circulation (AMOC), Subpolar Gyre (SPG), and uncertainties of their projections;
• Tipping points prediction methodologies;
• Impacts and communication of tipping points research results.

Each theme featured scientific talks from several projects, along with ample time for discussion of scientific results. The discussions continued in the breakout groups during the cross-project workshop, which was organised across the same five themes. To round off, the event featured a hands-on session, where participants practised developing storylines for selected tipping events.

Resources from Clustering Event are now available

The Book of Abstracts of this event is available here on TipESM Zenodo community.

Presentations available in Open Access:

The Antarctic response to a 1% Annual Increase in Atmospheric CO₂. Presentation by: Javier Blasco, Alfred-Wegener-Institute, Helmholtz Centre for Polar and Marine Research.

Bridging Data and Theory for Monitoring Resilience Changes in Tropical Forests. Presentation by: Lana Blaschke, Technical University of Munich (TUM).

AMOC thresholds in CMIP6 models: NAHosMIP. Presentation by: Laura Jackson, Met Office.

Statistically Optimal Fingerprints for the Atlantic Meridional Overturning Circulation and the Sub-Polar Gyre. Presentation by: Bahar Emirzade, Technical University of Munich (TUM).

Critical Salinity as an Early Warning of Tipping Point in the North Atlantic Subpolar Gyre. Presentation by: Lucas Almeida, University of Bordeaux.

Collapse of the AMOC in a Strongly Eddying Ocean-Only Model. Presentation by: Henk Dijkstra, University of Utrecht.

Noise-shaped hysteresis cycles of the AMOC under increasing CO2 forcing. Presentation by: Susanna Corti, Consiglio Nazionale delle Ricerche (CNR).

Assessment paper on high-impact climate events, tipping points and irreversible regional impacts. Presentation by: Gabi Hegerl, University of Edinburgh.

Uncertainties in Tipping Warning and Prediction. Presentation by: Maya Ben-Yami, Technical University of Munich (TUM).

The IPCC Outlines of AR7 and challenges for WGI. Presentation by: Robert Vautard, Institut Pierre Simon Laplace (IPSL); Intergovernmental Panel on Climate Change (IPCC).

Societal and ecosystem impacts of climate tipping points. First results from TipESM. Presentation by: Andrew Hartley, Met Office.