showSidebars ==
showTitleBreadcrumbs == 1
node.field_disable_title_breadcrumbs.value ==

SSFI: SMU CCLA - NUS CIL Distinguished Lecture

Please click here if you are unable to view this page.

 

SMU CCLA - NUS CIL Distinguished Lecture by Judge Tomas Heidar

Complementarity between Hamburg and The Hague: The Two Advisory Opinions on Climate Change


Join Singapore Management University's Centre for Commercial Law in Asia and the National University of Singapore's Centre for International Law for a Distinguished Lecture delivered by Judge Tomas Heidar President of the International Tribunal for the Law of the Sea (ITLOS). The lecture will be on the subject of two recent advisory opinions delivered by ITLOS and the International Court of Justice (ICJ) on the international obligations of states regarding climate change.

One of the most distinguished features of the 1982 United Nations Convention on the Law of the Sea is its compulsory dispute settlement mechanism. It provides, inter alia, for the choice of four different means or forums, three of which have been used so far, namely ITLOS, the ICJ and Annex VII arbitration. Obviously, the existence of multiple judicial bodies entails the risk of inconsistent jurisprudence, or judicial fragmentation, but the system has also the potential to be complementary.

This lecture will address potential examples of inconsistent jurisprudence as well as examples of cross-referencing of jurisprudence in the law of the sea. It will conclude with a discussion on judicial complementarity between ITLOS and the ICJ with reference to their recent advisory opinions on climate change.


This Lecture will be co-hosted by Associate Professor Nengye Liu (Yong Pung How School of Law, Director Singapore Sustainable Futures Initiative) and Assistant Professor Tara Davenport (co-head of Oceans Law and Policy at NUS Centre for International Law).
 

PROGRAMME

Time (SGT)Programme
4:45pmRegistration opens
4:55pmGuests to be seated
5:00pm

Distinguished Lecture -Complementarity between Hamburg and The Hague: The Two Advisory Opinions on Climate Change

Judge Tomas Heidar
President, International Tribunal for the Law of the Sea

5:40pm

Q&A

Judge Tomas Heidar
President, International Tribunal for the Law of the Sea

Moderated by: Associate Professor Nengye Liu
Yong Pung How School of Law, Singapore Management University
Director of the Singapore Sustainable Futures Initiative

6:00pmEnd of Event
Reception to follow


Speaker

Judge Tomas Heidar
President, International Tribunal for the Law of the Sea

Judge Tomas Heidar (Iceland) is President of the International Tribunal for the Law of the Sea (ITLOS). He has been Judge of the Tribunal since 2014 and was President of the ITLOS Chamber for Fisheries Disputes 2017-2020 and Vice-President of the Tribunal 2020-2023. He was a Member of the ITLOS Special Chamber in the Dispute concerning delimitation of the maritime boundary between Mauritius and Maldives in the Indian Ocean.

From 1996-2014, Judge Heidar served as Legal Adviser of the Ministry for Foreign Affairs of Iceland, attaining the rank of Ambassador. As such he was responsible for all matters of public international law and represented Iceland regularly at meetings on ocean affairs and the law of the sea at the United Nations and in other international fora.  

Judge Heidar is also Director of the Law of the Sea Institute of Iceland and Co-director and lecturer of the Rhodes Academy of Oceans Law and Policy. He has lectured at the University of Iceland and many other universities and institutions around the world, including the University of Cambridge, the University of Oxford, University College London, Queen Mary University of London, the University of Edinburgh, the University of Essex, the University of Nottingham, the British Institute of International and Comparative Law, Leiden University, UiT The Arctic University of Norway, the University of Virginia, the National University of Singapore Centre for International Law, Peking University, Hosei University, Kyoto University, the University of the Philippines, Vietnam National University, Torcuato di Tella Law School, the Pontificial Catholic University of Valparaiso, the IFLOS Summer Academy, the Yeosu Academy of the Law of the Sea and the Kadir Has International Law of the Sea Summer Academy. He has taught law of the sea at the United Nations Regional Course in International Law in Ethiopia.

Judge Heidar has published numerous books and articles on ocean affairs and the law of the sea, most recently New Knowledge and Changing Circumstances in the Law of the Sea (ed., Brill Nijhoff, 2020), “The Contribution of the International Tribunal for the Law of the Sea to the Protection of the Marine Environment” in the Korean Journal of International and Comparative Law (2021) and International Fisheries Law: Persistent and Emerging Challenges (co-ed., Routledge, 2025). He is also Conciliator and Arbitrator under Annexes V and VII to the United Nations Convention on the Law of the Sea.

 


Hosts

LIU Nengye's photo

Associate Professor Nengye Liu 

Yong Pung How School of Law, Singapore Management University 
Director of the Singapore Sustainable Futures Initiative

 

Tara Davenport (@tdavenport711) / Posts / X

Assistant Professor Tara Davenport 

Co-head of Oceans Law and Policy at NUS Centre for International Law, National University of Singapore

 

 

 

Register Button

Limited seats available.
Register by 9 January 2026, 5:00pm

Complimentary

In-person only

26 January 2026 (Monday),
5:00pm to 6:00pm

Learning Lab 3 & 4, Kwa Geok Choo Law Library, Yong Pung How School of Law, Singapore Management University

Level 3, 55 Armenian St, Singapore 179943

Click here for directions to Yong Pung How School of Law


Co-organised by

Logos of two institutions

To subscribe/unsubscribe from the Centre for Commercial Law in Asia's mailing list, please click here.