On April 9, 2024, the Grand Chamber of the European Court of Human Rights (ECtHR or the Court) seated in Strasbourg released its judgment in the Verein KlimaSeniorinnen Schweiz v. Switzerland case, which marks the first occasion where the Court found a violation of several rights of the European Convention on Human Rights and Fundamental Freedoms (Convention) in a climate change litigation case.

Following Russia's full-scale invasion of Ukraine in February 2022, a number of countries, including the United States, froze Russian sovereign assets (RSA) within their respective jurisdictions. It is estimated that some US$300 billion of RSA are immobilized worldwide. A fraction of those frozen assets, approximately US$4–$5 billion, are thought to be subject to the jurisdiction of the United States. On April 24, 2024, President Biden signed H.R. 815 into law, which included the Rebuilding Economic Prosperity and Opportunity for Ukrainians Act (REPO Act). The REPO Act broadly provides for the “repurposing” of RSA within the jurisdiction of the United States to facilitate assistance to Ukraine in response to Russia's unlawful invasion.

On November 8, 2022, the Court of Justice of the European Union (CJEU) rendered a preliminary ruling in response to a request from the Administrative Court of Schleswig-Holstein, Germany. The request pertained to the interpretation of Article 9(3) of the Convention on Access to Information, Public Participation in Decision-Making and Access to Justice in Environmental Matters (Aarhus Convention). The CJEU held that Article 9(3) of the Aarhus Convention must be interpreted as precluding a situation where an environmental association is unable to challenge an administrative decision before a national court.

On June 26, 2024, Trial Chamber X found Al Hassan guilty of some of the charges of war crimes and crimes against humanity brought against him for acts committed between April 2, 2012, and January 29, 2013, in Timbuktu. According to a press release issued by the Court, the Court found that Al Hassan became a senior member of the Islamic Police and was given the task of, among other things, organizing police work. The Islamic Police played a “pivotal” role in the system put in place by armed groups Ansar Dine and Al-Qaida in Islamic Maghreb (AQIM)—a system put in place to commit the crimes at issue. The Court also determined that Al Hassan contributed to the police system put in place by Ansar Dine and AQIM through actions including writing and signing police reports, taking part in the transfer of accused persons to the Islamic Court, and implementing the Court's judgments and sentences. He was committed of the direct commission of crimes, contributing to crimes with others, and aiding and abetting the crimes of others in relation to crimes against humanity and torture, and the war crimes of torture and outrages upon personal dignity. He was convicted of contributing to crimes of Ansar Dine and AQIM in relation to the war crimes of mutilation, cruel treatment and passing sentences without previous judgment pronounced by a regularly constituted court, affording all judicial guarantees which are generally recognized as indispensable, and the crimes against humanity of persecution and other inhumane acts.