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 We innovate together to empower citizens and create liveable,  greener and resilient  urban cities for all

Mapping Heat Stress in Athens: Citizen Data Driving Climate Action 

5min • January 2026

In Athens, DAEM is leading the Urban ReLeaf pilot activities and is collaborating with ICCS in order to understand how heat stress affects people across the city. For this citizen science campaign, DAEM onboarded the Department of…

Urban ReLeaf aicina māksliniekus kopīgi veidot klimata sienas gleznojumu Rīgā 

4min • January 2026

Urban ReLeaf meklē māksliniekus, dizainerus, sienu gleznotājus vai kopienu koordinatorus sniegt priekšlikumus par aizraujošu iespēju Rīgā! Mēs piedāvājam 2500 eiro atlīdzību par sienas gleznojuma koncepcijas izstrādi un līdzdalības procesa…

Urban ReLeaf Accelerator Programme – Expression of Interest 

4min • December 2025

What is the Urban ReLeaf Accelerator Programme? The Urban ReLeaf Accelerator Programme is a structured capacity-building and replication initiative that helps cities harness the power of citizen…

Solis pretī zaļākai Rīgai

5min • December 2025

Rīgas pilotaktivitāte – Kampaņa “Sper soli pretī zaļākai pilsētai” šovasar bija kā dzīvs eksperiments, kopā izprotot sabiedrības zinātni, karstumsalas un iedzīvotāju iesaistes nozīmi pilsētu zaļajā…

Measuring Heat Stress in Cascais: Citizen Science in Action 

4min • November 2025

Building on the success of the Greenspace Perceptions Campaign, which gathered over 1,500 citizen contributions on comfort in urban parks, phase two of the Heat Stress…

Light Up Dundee with Urban ReLeaf: Join Our Lantern-Making Workshops for the Hooley Parade

4min • November 2025

Urban ReLeaf is excited to invite you to a series of free to attend lantern-making workshops as part of our Community Pop-Up Lab, leading up…

Volunteer in your city

Discover how to participate in one of our six pilots in Athens, Cascais, Dundee, Mannheim, Riga or Utrecht and start collecting environmental data in your neighbourhood.

Join now

Join our Working Groups

Urban ReLeaf is hosting three Working Groups as part of its Community of Practice.

Calls for participation will be launched in January 2024 and January 2025. More information will follow in our newsletter and on social media.

Join now

Triggering innovation in public authorities with citizen-powered science.

Coupling citizen science & Earth Observation for European Green Deal & UN SDG 11 monitoring.

Urban design foresight for Nature Based Solutions (NBS) & Blue Green Infrastructure (BGI) scenario planning.

Our vision for future cities.

Urban ReLeaf believes in empowering vulnerable communities to shape climate change mitigation and green infrastructure actions in their neighbourhoods. Citizens in six cities across Europe are taking part in data collection campaigns on heat stress, humidity and air quality to improve the quality of life in their districts.

Comprehensive and reliable urban data ecosystems will allow policy-makers to develop more effective, tailored, city-specific strategies in the fight against climate change. Together, these can strengthen our cities, making them more resilient, liveable, and accessible for all.