ARC, supported by numerous partners and sponsors, will host the summit on October 12–13, 2026, in Reykjavík, Iceland. The range of participants will include scientists, philanthropic funders, entrepreneurs, policymakers, Indigenous leaders, youth networks, and Global South organizations, all of whom are actors who rarely share the same room but whose engagement is critical for legitimacy. The current moment is an important inflection point for the field, and this Summit exists to set it up for success.
To support diverse participation, travel funding and compensation are available for Indigenous, youth, and Global South leaders, as well as others who may face barriers to covering travel costs to attend the CEF Summit. We are no longer accepting travel support applications.
Supporters
Sessions are designed and led by sponsors and convening partners from across the field.
Photo: Holger Uwe Schmitt, CC BY-SA 4.0, colour-graded
Photo: Markus Trienke, CC BY-SA 2.0, colour-graded
Photo: Jakub Hałun, CC BY-SA 4.0, colour-graded
Photo: Giuseppe Milo, CC BY 2.0, colour-graded
Two days in Reykjavík
Day One groups people by risk cluster; Day Two groups by functional area.
Objectives
CEF supports events, roadmaps, and synthesis reports, all aimed at facilitating difficult conversations, not flattening them.
- Synthesize knowledge on catastrophic climate risks
- Identify decision-relevant pathways
- Surface open questions and key debates
- Build cross-field visibility and enduring collaborations
Day One
A comprehensive view of emerging nonlinear climate risks with specific climate system deep dives.
Day Two
Spotlighting challenges across technologies, response options, governance funding, industry, communication, and more, and how these will shape the pathway to future preparedness.
Day One risk tracks
Arctic & AMOC Destabilization
Sea Level Rise & Ice Sheets
Biosphere & Ecosystems
Earth’s ReflectivitySpeakers
Speakers confirmed to date.
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