Credit: UN Climate Change

Climate Week 2-2025: Turning Ambition into Action

From 1-6 September, Addis-Ababa, Ethiopia, will host the second Climate Week of 2025 (CW2), at the Addis International Convention Center (AICC).

CW2 is a global platform to accelerate climate implementation, bringing together governments, technical experts, financial institutions, civil society, and youth to convert ambition into action. It is part of the UNFCCC’s Climate Week series, which convenes regional and global actors to tackle real-world implementation challenges and identify scalable solutions.

At the heart of CW2 is the Implementation Forum, a dedicated space for open, solutions-oriented dialogue aimed at identifying barriers, co-designing enabling conditions, and turning commitments into measurable outcomes. Discussions will center on the urgent need for stronger adaptation efforts, while ensuring that the shift to low-carbon economies happens in a way that is fair, inclusive, and socially just. A key focus will also be on unlocking and aligning finance for implementation—including through the innovative potential of Article 6 mechanisms under the Paris Agreement.

Alongside mandated events and high-level dialogues, CW2 fosters an inclusive and action-oriented environment—bridging ambition and implementation, amplifying diverse global perspectives, and laying the groundwork for credible outcomes at COP30 and beyond.

CW2 will precede the Africa Climate Summit 2 (ACS2), taking place in Addis Ababa the following week. The Summit will gather African Heads of State and key international partners to define common positions and commitments. Outcomes from CW2—particularly from the Implementation Forum—will provide technical insights, policy momentum, and regional perspectives to support the development of a unified voice on implementation, finance, and just transition ahead of COP30.
 

Credit: UN Climate Change

Credit: UN Climate Change

Daily Highlights 

Scroll to the right to see the highlights of the whole week

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Credit: UN Climate Change	Credit: UN Climate Change	Credit: UN Climate Change	Credit: UN Climate Change	Credit: UN Climate Change	Credit: UN Climate Change

Credit: UN Climate Change

Expression of Interest to host a Regional Climate Week in 2024

The UNFCCC and its global partners invite national governments to submit an Expression of Interest (EOI) to host the Climate Week for their regions (Africa, Asia-Pacific, Latin America and the Caribbean, and Middle East and North Africa) in 2024. This is a unique opportunity to bring governments, the private sector, and other non-Party stakeholders together to advance cooperation and collaboration to address the climate change crisis. Applications will be accepted through 6 October 2023. 

To submit an Expression of Interest, please send a signed EOI to the UNFCCC secretariat at Climate-Week@unfccc.int and attach the Elaboration on Criteria form by 6 October 2023. 

How to apply for hosting a Regional Climate Week in 2024 

The Regional Climate Weeks provide a platform for engagement by national and subnational governments, regions, cities, Indigenous Peoples communities, the private sector and civil society. Each week is an opportunity to shape the implementation and delivery of national climate action plans under the Paris Agreement on the way to COP29 in 2024.  

The agenda, information for participants, online registration, on-site organization, communications including video production and photography, as well as the outcome reports and presentation of outputs at the following COP are led by UNFCCC with the support of global and regional partners. Learn more about UNFCCC and partners’ roles and scope of tasks here. 

The preparation time for Regional Climate Weeks usually is up to six months. This is to allow proper planning, preparation of information and organization of all aspects of the event. A draft example of a preparation timeline with milestones can be found here. 

Information about Regional Climate Weeks from 2021 to 2023