To accelerate momentum, the UN Secretary-General hosts a Special High-Level Event on Climate Action on 24 September 2025, as a platform for leaders to present their new Nationally Determined Contributions (NDCs).
By COP30, all Parties to the Paris Agreement must submit new national climate plans or "Nationally Determined Contributions (NDCs) that reflect bold action for the next decade. These updated plans are a chance to unlock the benefits of a just, resilient, low-carbon future. To accelerate momentum, the UN Secretary-General will host the Climate Summit 2025 on 24 September 2025, as a platform for leaders to present their new Nationally Determined Contributions (NDCs). This event will also bring together leaders from government, business, and civil society, around thematic Solutions Dialogues, to put forward ideas to drive action across mitigation, adaptation, finance, information integrity and other critical areas, in line with the Paris Agreement and COP30 priorities.
