André Nollkaemper



André Nollkaemper is Dean and Professor of Public International Law at the Faculty of Law of the University of Amsterdam, and Member of the Institut de Droit International.

Recently Published

A guide to tackling the collective causation problem in international climate change litigation

In the wide variety of arguments that defendants have brought up in climate change litigation, one argument is a constant. This is the argument that climate change is a problem of collective causation. That is: climate change harm is caused by actions and omissions of many actors and it would be scientifically impossible to attribute specific climate…

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Three Options for the Veto Power After the War in Ukraine

If any good can come out of the war in Ukraine, it should be a resumption of the decade-long process in the United Nations aiming at reining in or even removing the veto power of the permanent members of the Security Council. President Zelensky’s recent call for reforming the veto system may help to create the necessary…

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A New Classic in Climate Change Litigation: The Dutch Supreme Court Decision in the Urgenda Case

    The judgment of the Dutch Supreme Court in State of the Netherlands v Urgenda is a landmark for future climate change litigation. On the 20th of December 2019, the Supreme Court held that on the basis of the European Convention on Human Rights (ECHR) the Netherlands has a positive obligation to take measures…

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