25 Years of ICLEI
2015 marks our 25th anniversary. Watch the video to find out what we’ve achieved so far!
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Top five most-read ICLEI stories in 2024
To wrap up 2024, we delve into the diverse array of stories that proved to be our most popular of the year – five stories that resonated, shaping and informing perspectives on sustainable urban development.
Mind the gap: How youth fall between presence and power in urban governance
This guest op-ed article argues that youth participation in urban governance must move beyond symbolism to real power, especially in the Global South.
Youth are taking climate stock. Here are ten ways cities can act with them.
To truly harness youth leadership, local and regional governments must go beyond consultation, co-creating processes where young people set agendas, influence decisions, and hold institutions accountable.
Building livable cities starts with water resilience
Water is a “blue thread” connecting human rights, the SDGs, and the three Rio Conventions on climate, biodiversity, and land. Embedding water resilience into urban planning is not optional; it is essential for climate-smart, inclusive, and livable cities, and local and regional governments are already delivering. Explore how we are supporting them to step up to the challenge and scale their impact.
Our most popular stories in 2025
To wrap up 2025, we look back at six stories that resonated most with our readers. From urban biodiversity and nature-based solutions to extreme heat, green finance and global sustainability agendas, these pieces capture a defining year for cities and regions.
Ten ICLEI resources that readers downloaded in 2025
Every year, ICLEI works with local and regional governments, partners, leaders and other experts to develop and publish state-of-the-art, context-specific…