Which of the following has formally left the Paris Agreement?
The Paris Agreement is a global accord aimed at reducing greenhouse gas emissions and limiting global warming. Nations that join the agreement can also formally withdraw from it under specific conditions.
The question asks which country among the options has formally left the Paris Agreement. The United States (USA) is the correct answer because it completed the formal withdrawal process.
Therefore, the USA is the country that has formally left the Paris Agreement among the choices given.
| 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 landmark treaty, aimed at protecting the high seas, achieved its final ratification push during the UN Ocean Conference in June 2025?