30 June 2026
Corporate Duty of Vigilance in Climate Litigation
On 25 June 2026, the Paris Judicial Court ruled on the adequacy of TotalEnergies’ vigilance plan. Among other things, the Court ruled that the company's Vigilance Plan must address the greenhouse gases generated through the downstream use of its products (Scope 3 emissions). The judgment simultaneously strengthens the normative content of the Duty of Vigilance while revealing the judiciary’s reluctance to fully articulate a unified framework of corporate climate responsibility. Continue reading >>
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23 June 2026
From Awas Tingni to Advisory Opinion 32/25
In July 2025, the Inter-American Court of Human Rights issued Advisory Opinion 32/25 on the Climate Emergency and Human Rights: it recognized the right to a healthy climate as a standalone human right, declared a jus cogens norm prohibiting irreversible environmental harm, and affirmed the legal personhood of nature. These are not incremental developments. They are structural shifts in international environmental law, and they are the culmination of more than two decades of jurisprudential construction. This post traces that arc. Continue reading >>
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17 June 2026
Inter-Judicial Dialogue on Climate Change and Human Rights
Climate change is not only an environmental or scientific issue – it is fundamentally a human rights challenge. Across jurisdictions and legal traditions, courts are increasingly being called upon to respond to their complex and far-reaching impacts on our human rights. This symposium brings together reflections from judges, practitioners, and scholars from the three regional human rights systems, based on presentations delivered at a conference held at Central European University in cooperation with the University of Vienna on 17 April 2026. Continue reading >>
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15 May 2026
“Once the Lawyers Move In, You Know the Problem Is Serious”
Last July, the International Court of Justice delivered its unanimous advisory opinion on climate change – and it was unambiguous. Climate obligations are legal, substantive, and enforceable. Eighteen months after we first spoke with Marie-Claire Cordonier Segger, Tejas Rao and Markus Gehring from the University of Cambridge about the then-upcoming opinion, we asked them to take stock of what has actually changed: in courts, in multilateral diplomacy, and in the growing coalition of states willing to move ahead without waiting for the holdouts. Continue reading >>
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15 May 2026
„Wenn die Juristen kommen, wird es ernst“
Letzten Juli hat der Internationale Gerichtshof sein Gutachten zum Klimawandel vorgelegt – und es war eindeutig: Klimaschutzverpflichtungen sind rechtlich verbindlich und durchsetzbar. Anderthalb Jahre nachdem wir erstmals mit Marie-Claire Cordonier Segger, Tejas Rao und Markus Gehring von der Universität Cambridge über das damals bevorstehende Gutachten gesprochen hatten, haben wir nachgefragt: Was hat das Gutachten tatsächlich verändert? Und wie steht es um die globale Klimagovernance? Continue reading >>12 November 2025
One Step Back and Two Steps Forward
In May, after years of litigation, the Higher Regional Court of Hamm rendered its final decision in Lliuya v. RWE AG – a landmark case in which a Peruvian farmer sought to hold the German energy giant RWE financially responsible for measures protecting his property from a potential glacier flood. Although the Court rejected the claim in the end, the judgment has been celebrated as a “success without victory” due to the potential precedent effect in terms of corporate liability. The true significance of the Lliuya v. RWE decision lies not in its dismissal of the plaintiff’s claim, but in the court’s reasoning on extraterritoriality, causality, and preventive protection. Continue reading >>
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13 October 2025
Transforming the Meat and Dairy Industry through Environmental Litigation
In light of prevalent nationalist populism, what type of strategic litigation against the meat and dairy industry is likely to be most transformative? Activists formulating their strategy need to consider the interrelated questions of what interests to highlight, whom to sue, and what legal norms to invoke, whilst being aware that nationalist populists will try to use any judgement to their advantage. Continue reading >>
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09 September 2025
A Step Forward in Italian Climate Litigation
Climate litigation achieved an important milestone in Italy. In a landmark order on 18 July 2025, the Supreme Court of Cassation confirmed that Italian courts may assert jurisdiction over climate-related damages for the first time. The ruling opens the door to holding both public and private actors liable for climate inaction. Continue reading >>
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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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