COP30 will be the 30th Conference of the Parties of the UN Framework Convention on Climate Change (UNFCCC), which will be held in Belém, Brazil in November 2025.

The summit will be a crucial platform for negotiations between governments, international organisations, and nongovernmental organisations, with the goal of increasing global action on climate change.

COP30 is seen as especially important, even compared to previous COPs. The increasing urgency of action has compounded the need for effective negotiations and COP30 also falls at a key stage in the process set out under the Paris Agreement, with countries due to set out new or updated Nationally-Determined Contributions (NDCs), effectively ‘ratcheting-up’ their commitments on climate change.

In the context of shifting global politics, COP30 will also need to meet the challenge of keeping the world agreed on tackling climate change, avoiding regression on existing commitments.

The key priorities set out by the COP30 presidency include: protecting multilateralism and the role of science; linking negotiations to tangible change for communities; and accelerating implementation through structural mechanisms and delivery levers, particularly finance.

Following the critical response to last year’s COP29, close attention will be on COP30 to deliver and convert climate ambitions into tangible action.

This briefing sets out the details of what to expect from COP30, the implications of the summit for environmental science, and how COP30 fits into the wider context of climate action on an international and national level.

Learn more about our key messages for COP30 in our position piece: ‘Delivering change in a complex world’.