Application no. 34757/24
Mar Menor y su Cuenca v Spain
European Court of Human Rights (three-judge Committee) · 8 October 2026
- Court
- European Court of Human Rights (three-judge Committee)
- Decided
- 8 October 2026
- Citation
- Application no. 34757/24
- Status
- Declared inadmissible
What was decided
In what counsel describe as the first case Strasbourg has examined from an ecological legal person, the European Court of Human Rights declared inadmissible an application lodged in the name of the Mar Menor lagoon. Neither the lagoon nor the association acting for it could claim to be a victim under Article 34, because the body meant to represent the lagoon had not yet been set up.
Why it matters
The lesson is procedural before it is philosophical. The Court did not say that an ecosystem can never be a victim, nor that it can. It treated the problem as one of representation under Spanish law. The lagoon’s legal personality in Spain is untouched, and the Convention question is postponed rather than closed.
135 km²Size of the Mar Menor, the largest lagoon on the Spanish Mediterranean
639,826Signatures behind the popular initiative that became Law 19/2022
Art. 34The Convention’s victim requirement, where the application stalled
How the case unfolded
30 September 2022
Law 19/2022 declares the lagoon and its basin a legal person and a subject of rights.
20 November 2024
Spain’s Constitutional Court upholds the statute in judgment 142/2024.
11 February 2025
Royal Decree 90/2025 regulates the lagoon’s representative and governance bodies.
8 October 2026
The European Court of Human Rights declares the application inadmissible.
