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.
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.
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.
Five ingredients for sustainable and resilient city-region food systems
Thorough the FoodCLIC project, cities across the world are responding to many of the same food system challenges in different and creative ways
Circular Development Equitable Development ICLEI organization ICLEI's Five Pathways Japan Office Nature-based Development Resilient Development Zero emission Development
ICLEI Members in Japan are scaling action through ICLEI’s five pathways
In fiscal year 2024, ICLEI Members in Japan engaged in various activities connected to ICLEI’s five pathways toward sustainable urban…
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.