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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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.
How protecting migratory species built bridges between governments during COP15 in Brazil
The discussions showed how financing, peer learning, and cooperation across regions can help protect migratory species in the habitats and corridors they depend on.
From asphalt to wetland sponge park: How Chennai is absorbing water and building resilience
Once a parking lot and dumping ground, Chennai’s first wetland sponge park is leading the way for a climate-resilient city. Today, it functions as a natural water treatment system to manage stormwater and prevent floods, proving the power of nature-based solutions in shaping sustainable, thriving communities.
Can local climate dialogues really shape national climate action? The Town Hall COP Initiative is trying to prove they can
ICLEI’s Town Hall COP Initiative is emerging as a powerful model to make climate action truly locally led, transformation-oriented, and, most importantly, nationally relevant.
Placing people at the center: Embedding equity in circular food systems
Without equity, circularity risks optimizing food systems without transforming them – a distinction matters for millions of people.
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.