Speakers

H.E. Mr. Sumbue Antas will provide a keynote speach followed by reflections from Hon. Mr. Justice David Unterhalter, Gabrielle Marceau, Nicolas Lockhart, and Elena Cima. Dominic Coppens will moderate the session.

Sumbue Antas

Ambassador, Permanent Representative of Vanuatu to the United Nations Office and Other International Organizations in Geneva 

David Unterhalter

Judge of the Supreme Court of Appeal of South Africa; Professor of Law, University of Cape Town

Gabrielle Marceau

Honorary Professor of International Public Law and International Organization Law, University of Geneva

Nicolas Lockhart

Partner, Sidley Austin

Elena Cima

Senior Lecturer, International Environmental Law, University of Geneva 

Dominic Coppens

Professor of International Economic Law, Maastricht University

About this session

This lunchtime conversation will explore the recent International Court of Justice advisory opinion on states’ obligations to tackle climate change and identify some of the key implications for trade cooperation.

Explore the full programme

TCSD 2025 combines a number of live-cast public panels with a series of closed thematic brainstorming sessions and lunchtime dives, designed to deepen dialogue and generate ideas for practical outcomes, collaborations, and pathways forward.

Programme details