Margaretha Wewerinke-Singh

About/Bio

Margaretha Wewerinke-Singh is Associate Professor of Sustainability Law and Co-Founder of Climate Institute SEVEN at the University of Amsterdam, Adjunct Professor of Law at The University of Fiji, and a Member of the Permanent Court of Arbitration. She served as Lead Counsel for Vanuatu in the ICJ advisory proceedings on climate change and has continued to support Vanuatu in the General Assembly follow-up process.

Recently Published

From Opinion to Action: The General Assembly Votes to Operationalize the ICJ’s Climate Advisory Opinion

On 20 May 2026, the United Nations General Assembly adopted resolution A/80/L.65 welcoming the Advisory Opinion of the International Court of Justice (ICJ) on the Obligations of States in Respect of Climate Change. The draft, tabled by Vanuatu and a cross-regional Core Group attracted 90 co-sponsors and was adopted by a recorded vote of 141…

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Climate Justice as Substantive Equality: What the Bonaire Judgment Adds to “Equity” in Climate Law

On Bonaire’s low-lying southern coast sit the so-called “slave huts”: small coral stone buildings that carry the physical memory of a colonial economy built on racialised coercion and extraction. In Greenpeace Netherlands v The State of the Netherlands (Bonaire), the District Court of The Hague notes that this tangible cultural heritage—alongside lighthouses and salt pans—sits in coastal…

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The Great Reset: The ICJ Reframes the Conduct Responsible for Climate Change Through the Prism of Internationally Wrongful Acts

For the last six years, together with a handful of colleagues and friends from around the world, we have worked with the Government of Vanuatu to develop and implement a legal strategy to turn the aspiration of a group of students from the Pacific into a reality, bringing climate change before the International Court of…

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