http://dx.doi.org/10.59704/cb6a2a1bcefc5f06 https://verfassungsblog.de/vanuatu-resolution-icj/ “Once the Lawyers Move In, You Know the Problem Is Serious” - Five Questions to Marie-Claire Cordonier Segger, Tejas Rao, and Markus Gehring Cordonier Segger, Marie-Claire Rao, Tejas Gehring, Markus Bönnemann, Maxim eng 2026-05-15 electronic resource text/html ddc:342 ICJ Internationaler Gerichtshof | Den Haag Klima Klimaschutz Klimawandel State Responsibility United Nations climate change litigation Internationaler Gerichtshof | Den Haag Klima Klimaschutz Verfassungsblog Verfassungsblog--2366-7044 CC BY-SA 4.0 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.