Over the next 12 months, 40 cities from 24 countries will work together on local climate action, joining a unique programme offered under the EU Cities Mission. Twenty-two new cities will bring the total number engaged through peer-learning programmes in the mission to more than 200.
The Twinning Learning Programme is facilitated by NetZeroCities, which manages the EU Cities Mission platform, and will welcome the following cities as ‘Twin cities’ in the fourth cohort of the programme from 1 December 2025.
Through mutual knowledge exchange, the new Twin cities will work directly with 18 participating Mission cities – the 112 cities aiming to reach climate neutrality by 2030 as part of the EU Cities Mission – to learn from their experience, focusing on the actions outlined in their Climate City Contracts and the priorities identified in their associated action plans. The interactions will help twin cities design replication activities tailored to their needs, while Mission Cities will gain fresh perspectives and innovations to strengthen their own actions.
As a peer-learning opportunity funded under the EU Cities Mission, the programme directly contributes to the Mission’s second objective – ensuring that Mission cities act as hubs of experimentation and innovation, enabling all European cities to become climate neutral by 2050.
Informed by previous Twinning activities developed as part of the EU Cities Mission, this refreshed programme provides targeted feedback, structured partnerships, and access to practical tools. Through tailored and flexible knowledge exchange, workshops and site visits, cities can refine their strategies, accelerate progress toward key climate milestones, and strengthen their leadership role in driving urban climate action.
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