16 July 2025
Jus Cogens and the Climate Crisis
While there are many aspects of the Inter-American Court of Human Rights (IACtHR)’s Advisory Opinion 32/25 (AO-32/25) that are new and groundbreaking, the inclusion of a reflection on jus cogens might have surprised some observers. The legal consequences of the recognition as jus cogens of the obligation not to create irreversible damage to the climate and the global environment are profound. Treaties violating the norm are void, customary international law rules cannot exist, nor does the persistent objector rule apply. Continue reading >>
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24 March 2025
International Law Under Pressure
In this blog post, we document and analyse the numerous apparent breaches of international law that have occurred within the first six weeks of the 2025 Trump administration. What began as an informal discussion at the Lauterpacht Centre for International Law has evolved into this analytical overview. We believe this documentation serves both academic purposes and potentially supports future legal proceedings. While defenders of these actions will undoubtedly offer justifications for what we identify as clear breaches of international law, our analysis aims to provide an assessment based on established international legal principles. Continue reading >>07 December 2024
„Das IGH-Gutachten könnte die globale Klimagovernance grundlegend ändern.“
Fünf Fragen an Tejas Rao, Marie-Claire Cordonier Segger and Markus Gehring Continue reading >>
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07 December 2024
“The Advisory Opinion Could Reshape Global Climate Governance.”
Five Questions to Tejas Rao, Marie-Claire Cordonier Segger and Markus Gehring Continue reading >>
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