Which landmark treaty, aimed at protecting the high seas, achieved its final ratification push during the UN Ocean Conference in June 2025?
The question asks to identify a specific treaty focused on protecting the high seas that gained momentum during the UN Ocean Conference in June 2025.
The Biodiversity Beyond National Jurisdiction (BBNJ) Agreement is the landmark treaty aimed at protecting the high seas, and it achieved significant progress towards ratification around the specified conference.
| List-I (Events) | List-II (Years) |
| A. UN Conference on Sustainable Development (Rio de Janeiro) | I. 1985 |
| B. UN Conference on the Human Environment (Stockholm) | II. 2015 |
| C. Convention for the Protection of the Ozone layer (Vienna) | III. 2012 |
| D. Paris Climate Change Conference (COP-21) | IV. 1972 |
Which of the following has formally left the Paris Agreement?